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All questions of IBPS RRB PO Mains for Bank Exams Exam

The DHCP server can provide the _______ of the IP addresses.
  • a)
    Dynamic allocation
  • b)
    Automatic allocation
  • c)
    Static allocation
  • d)
    All of the above
  • e)
    None of these
Correct answer is option 'D'. Can you explain this answer?

DHCP Server and IP Address Allocation

DHCP (Dynamic Host Configuration Protocol) is a network protocol used to dynamically assign IP addresses and other network configuration parameters to devices connected to a network. The DHCP server is responsible for providing IP addresses to devices that connect to the network.

Types of IP Address Allocation

There are three types of IP address allocation that the DHCP server can provide:

1. Dynamic Allocation: In this type of allocation, the DHCP server assigns an IP address to a device for a limited time. The IP address is released when the lease time expires or when the device disconnects from the network.

2. Automatic Allocation: In this type of allocation, the DHCP server assigns a specific IP address to a device based on its MAC address. The IP address is reserved for the device, and the device will always receive the same IP address when it connects to the network.

3. Static Allocation: In this type of allocation, the network administrator manually assigns a specific IP address to a device. The DHCP server is configured to recognize the device's MAC address and always assign the same IP address to it.

Answer

The correct answer is "D", as the DHCP server can provide all three types of IP address allocation - dynamic, automatic, and static - depending on the network administrator's configuration.

Directions: In the following sentence, some parts have errors and some are correct. Find out which part has an error and mark it as your answer. If there is no error, mark ‘No error’ as your answer.
She is more efficient than me (A)/ in running the house (B)/ and taking care (C)/ of the garden. (D)
  • a)
    (A)
  • b)
    (B)
  • c)
    (C)
  • d)
    (D)
  • e)
    No error
Correct answer is option 'A'. Can you explain this answer?

Nikita Singh answered
  • The error lies in the wrong usage of the pronoun ‘me’ in Part (A).
  • ‘Me’ should be replaced by ‘I’ because after ‘than’, the pronoun used should be in the same case as that of the pronoun used before ‘than’.
For example: Mother loves him more than me.
In the given sentence, ‘she’ - the pronoun before ‘than’ is in the Nominative case; hence, the pronoun after ‘than’ needs to be in the Nominative Case.
Therefore, ‘I’ should be used instead of ‘me’.
So, the correct sentence is: “She is more efficient than I in running the house and taking care of the garden.”
Hence, the correct option is (A).

Directions: Fill in the blanks with appropriate words.
Prior to 1991, India’s economy and financial system were heavily regulated and ____(1)___ by the public sector. A complicated regulatory regime required firms to obtain licenses for most economic activities, and many industries were ____(2)____ for the public sector, including much of the financial system. Bank nationalizations in 1969 and 1980 increased the public sector share of deposits 5 to over 80 per cent, and further branch licensing was rigidly controlled. Primarily focused on financing government ____(3)____ and serving government priority sectors such as agriculture, India’s public banks lacked proper lending ____(4)____ and exhibited a high number of non-performing loans. Following a balance of payments crisis in 1991, however, a number of structural ___(5)___ were implemented that greatly deregulated many economic activities, and in November 1991, a broad financial reform agenda was established in India by the Committee on the Financial System (CFS).
Q. What should come in the place of blank (5)?
  • a)
    Preserve
  • b)
    Maintain
  • c)
    Occupied
  • d)
    Attain
  • e)
    Reforms
Correct answer is option 'E'. Can you explain this answer?

Snehal Patel answered
Answer:

Structural Reforms in India's Economy and Financial System

Prior to 1991, India's economy and financial system were heavily regulated and controlled by the public sector. The following points elaborate on the situation:

1. Complicated regulatory regime: Firms were required to obtain licenses for most economic activities, and many industries were reserved for the public sector, including much of the financial system.

2. Bank nationalizations: In 1969 and 1980, bank nationalizations increased the public sector share of deposits to over 80%, and further branch licensing was rigidly controlled.

3. Public banks' focus: Primarily focused on financing government projects and serving government priority sectors such as agriculture, India's public banks lacked proper lending practices and exhibited a high number of non-performing loans.

4. Balance of payments crisis: Following a balance of payments crisis in 1991, a number of structural reforms were implemented that greatly deregulated many economic activities.

5. Financial reform agenda: In November 1991, a broad financial reform agenda was established in India by the Committee on the Financial System (CFS).

Therefore, the appropriate word that should come in the place of blank (5) is "Reforms." These structural reforms aimed to liberalize the economy, promote private investment, and create a more competitive and efficient financial system. The reforms included reducing tariffs, abolishing industrial licensing, allowing foreign investment, and strengthening the banking sector. These measures led to significant growth in the Indian economy and attracted foreign investment, making India one of the fastest-growing economies in the world.

Read the statement given below and the questions that follow. Considering all the details to be true, mark the suitable option as your answer
Statement: The students these days do not have the habit of reading and that is the reason their knowledge in many areas is not as profound as it used to be earlier as they depend on others to tell them the important information or events.
Course of Action:
I. Schools should promote reading as a habit in students right from their early classes
II. Parents must help the children come closer to reading by making their personal library at home
  • a)
    Only II
  • b)
    Only I
  • c)
    Both I and II
  • d)
    Neither I nor II
  • e)
    Either I or II
Correct answer is option 'B'. Can you explain this answer?

Saumya Roy answered
Statement: The students these days do not have the habit of reading and that is the reason their knowledge in many areas is not as profound as it used to be earlier as they depend on others to tell them the important information or events.

Course of Action:
I. Schools should promote reading as a habit in students right from their early classes
II. Parents must help the children come closer to reading by making their personal library at home

Explanation:

Introduction:
The statement highlights the lack of reading habit among students and how it affects their knowledge in various areas. The course of action suggests two steps that could be taken to address this issue.

Explanation of Course of Action I:
Schools play a crucial role in shaping the habits and interests of students. By promoting reading as a habit right from their early classes, schools can instill a love for reading in students. This can be done through various means such as organizing reading competitions, setting up well-stocked libraries, and including reading as a mandatory activity in the curriculum. By making reading a regular part of their routine, students will develop a habit of reading and enhance their knowledge in different areas. Therefore, the first course of action is suitable and should be implemented.

Explanation of Course of Action II:
Parents also have a significant influence on their children's habits and interests. By making a personal library at home, parents can create an environment that encourages reading. Having access to a variety of books at home will make it easier for children to develop a reading habit. Parents can also actively engage with their children by reading together, discussing books, and recommending interesting titles. This will not only help children improve their knowledge but also foster a love for reading. Hence, the second course of action is also suitable and should be followed.

Conclusion:
Both course of actions I and II are appropriate and complementary to each other. Schools and parents need to work together to promote reading as a habit among students. By doing so, students will become more knowledgeable and less reliant on others for information.

When one computer provides services to another computer, the environment is a(n) _____ infrastructure.
  • a)
    Master slave
  • b)
    Client /server
  • c)
    Domain
  • d)
    Independent
  • e)
    None of these
Correct answer is option 'B'. Can you explain this answer?

Sakshi Bose answered
Client/Server Infrastructure Explanation:
Client/Server infrastructure is a computing model in which one computer, known as the server, provides services or resources to another computer, known as the client. This model is commonly used in networking environments where multiple computers need to communicate and share resources.

Key Points:
- In a client/server infrastructure, the server handles requests from clients and provides services such as file storage, email hosting, web hosting, database management, etc.
- The client initiates requests for services or resources from the server, which then processes these requests and sends back the results to the client.
- This model allows for centralized management and control of resources, making it easier to maintain and secure the network.
- Clients can be individual computers, mobile devices, or even other servers that request services from the main server.
- Client/server architecture is scalable, meaning additional clients can easily be added to the network without affecting the overall performance.
- This infrastructure is widely used in businesses, organizations, and the internet to enable efficient communication and resource sharing among computers.

Block caches or buffer caches are used:
  • a)
    to improve disk performance
  • b)
    to handle interrupts
  • c)
    to increase the capacity of the main memory
  • d)
    to speed up main memory read operation
  • e)
    None of the above
Correct answer is option 'A'. Can you explain this answer?

Kavya Saxena answered
Block caches or buffer caches are used to improve disk performance to handle interrupts to increase the capacity of the main memory to speed up the main memory.
Reading from a disk is very slow compared to accessing (real) memory. In addition, it is common to read the same part of a disk several times during relatively short periods of time. This is called disk buffering, and the memory used for the purpose is called the buffer cache.
The buffer cache is where data blocks are copied to perform SQL operations. The buffer cache is a shared memory structure and is concurrently accessed by all server processes.
Hence, the correct option is (A).

Which account is opened by any investor while registering with an investment broker?
  • a)
    Fixed deposit account
  • b)
    Savings account
  • c)
    Dematerialized account
  • d)
    Recurring account
  • e)
    Current account
Correct answer is option 'C'. Can you explain this answer?

Arindam Roy answered


Dematerialized Account:

Dematerialized account, also known as a Demat account, is the account opened by an investor while registering with an investment broker. Here is a detailed explanation of what a Demat account is and why it is opened by investors:

What is a Demat Account?

- A Demat account is an account that holds shares and securities in electronic form instead of physical certificates.
- It allows investors to buy, sell, and hold securities in a convenient and secure manner.

Why is a Demat Account Opened by Investors?

- When investors trade in the stock market, they need a Demat account to hold the securities they purchase.
- It eliminates the risk of loss, theft, or damage associated with physical share certificates.
- It provides easy and quick access to holdings, allowing investors to track their investments in real-time.
- It facilitates the process of buying and selling securities online, making trading more efficient and cost-effective.
- It is mandatory for trading in the stock market as per the regulations of the Securities and Exchange Board of India (SEBI).

In conclusion, a Demat account is an essential account that investors open while registering with an investment broker to trade in the stock market efficiently and securely.

Directions: Study the following information carefully and answer the question given below.
Certain representatives of the countries sitting on a circular conference table. They all are facing inside. There are some seats vacant between them. Not more than three representatives sitting together. The total number of seats around the table is a prime number.
Two seats between A and the one who belongs to Brazil. There is only one seat between the one who belong to Israel and the one who belong to Thailand. The one who belongs to Brazil sits three places away from I who belong to Syria. The one who belongs to Japan sits second to the right of the one who belongs to India. The one who belongs to Argentina is the immediate neighbour of the one who belongs to Japan and the one who belongs to Israel. There are three seats between the one who belongs to Thailand and the one who belongs to Egypt. A belongs to India and C belongs to Argentina. The one who belongs to Indonesia sits exactly between the one who belongs to Thailand and the one who belongs to Egypt. The one who belongs to Syria and K are immediate neighbours of each other. There are exactly five seats between K and the one who belongs to Canada. L who belongs to Iran and B who belongs to Brazil are immediate neighbours of each other. There are two seats between the one who belongs to Canada and the one who belongs to Japan. There is only one seat between E and H, who belongs to Israel. There are three seats between K who belongs to Germany and F who belongs to Indonesia. D who belongs to Canada sits immediate left of A. J is an immediate neighbour of C. There is one more person sitting on the table who is G who belongs to Egypt. No one sits to the immediate right of B.
Q. Who among the following sits 10th to right of the one who belongs to India?
  • a)
    H
  • b)
    K
  • c)
    The one who belongs to Syria
  • d)
    The one who belongs to Egypt
  • e)
    None of these
Correct answer is option 'D'. Can you explain this answer?

Nikita Singh answered
1) A belongs to India and C belongs to Argentina.
2) Two seats between A and the one who belongs to Brazil.
3) The one who belongs to Japan sits second to the right of the one who belongs to India.
4) The one who belongs to Argentina is the immediate neighbour of the one who belongs to Japan and the one who belongs to Israel.
5) The one who belongs to Brazil sits three places away from I who belong to Syria.
6) There is only one seat between the one who belong to Israel and the one who belong to Thailand.
7) The one who belongs to Canada sits immediate left of the one who belongs to India.
8) There is only one seat between E and H, who belongs to Israel.
9) D who belongs to Canada sits immediate left of A.
10) There are three seats between the one who belongs to Thailand and the one who belongs to Egypt.
11) No one sits to the immediate right of B.
12) L who belongs to Iran and B who belongs to Brazil are immediate neighbours of each other.
13) J is an immediate neighbour of C.
14) The one who belongs to Syria and K are immediate neighbours of each other.
15) There are three seats between K who belongs to Germany and F who belongs to Indonesia.
16) The one who belongs to Indonesia sits exactly between the one who belongs to Thailand and the one who belongs to Egypt.
17) There is one more person sitting on the table who is G who belongs to Egypt.
Therefore, the final arrangement is,
Thus, “the one who belongs to Egypt” sits 10th to right of the one who belongs to India.
Hence, the correct option is (D).

What is the effect of crossing a cheque in India?
  • a)
    The payee can obtain payment only through a bank account
  • b)
    The payee is compelled to open an account
  • c)
    The payee will have to endorse the cheque to a bank
  • d)
    Both (A) and (B)
  • e)
    None of these
Correct answer is option 'A'. Can you explain this answer?

Nikita Singh answered
When a cheque is crossed, it means that it is an instruction by the client to not pay the cheque directly over the counter but to a banker only for crediting the payees account with the bank.
Hence, the correct option is (A).

Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and Give an answer.
(A) If the data in statement I alone is sufficient to answer the question, while the data in statement II alone is not sufficient to answer the question.
(B) If the data in statement II alone is sufficient to answer the question, while the data in statement I alone is not sufficient to answer the question.
(C) If the data either in statement I alone or in statement II alone is sufficient to answer the question.
(D) If the data given in both statements I and II together are not sufficient to answer the question.
(E) If the data in both statements I and II together are necessary to answer the question.
Seven persons from A to G are living in a 7-storey building numbered 1 to 7 from bottom to top respectively. Who lives immediately above A?
Statement I: E lives three floors below A and immediately above G. The number of persons living below G is one less than the number of persons living above F. As many persons live between C and B as between B and D.
Statement II: Two floors are between D and C, who is living immediately below F. One person lives between F and G, who lives on an even numbered floor. As many persons live above E as below B, who lives above A.
  • a)
    A
  • b)
    B
  • c)
    C
  • d)
    D
  • e)
    E
Correct answer is option 'D'. Can you explain this answer?

Aim It Academy answered
If the data given in both statements I and II together are not sufficient to answer the question.
From the statements given, we can form two possibilities in each statement.

Direction: A shopkeeper mixes 20% low quality rice with high quality rice and the cost of low quality’s rice is 50% of that of high quality’s rice.
Q. Find the actual profit earned by the shopkeeper if he claims to sell the mixture at the 15% profit only above the cost price of high quality rice.
  • a)
    23.34%
  • b)
    25.45%
  • c)
    20%
  • d)
    28.67%
  • e)
    None of these
Correct answer is option 'B'. Can you explain this answer?

Kavya Saxena answered
Suppose the cost price of 1000 gm of high quality rice is Rs. 1000.
Since he mixes 20% low quality rice, so the mixture of 1200 gm rice will have 1000 gm high quality rice and 200 gm low quality rice.
Since cost of low quality’s rice is 50% of the high quality’s rice.
∴ Actual cost of 1200 gm mixture of rice = 1000 + 200 × 0.5 = Rs. 1100
Now he claims to sell the mixture at the 15% profit only above the cost price of high quality’s rice.
∴ Selling price of 1200 gm mixture claimed by the shopkeeper = 1200 × 1.15 = Rs. 1380
∴ Actual profit percentage =
Hence, the correct option is (B).

The computational technique used to compute the disk storage address of individual records is called:
  • a)
    Bubble memory
  • b)
    Key fielding
  • c)
    Dynamic reallocation
  • d)
    Hashing
  • e)
    None of the above
Correct answer is option 'D'. Can you explain this answer?

Kabir Verma answered
The computational technique used to compute the disk storage address of individual records is called hashing. Hashing is simply passing some data through a formula that produces a result, called a hash. That hash is usually a string of characters and the hashes generated by a formula are always the same length, regardless of how much data you feed into it.
Hence, the correct option is (D).

Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and Give an answer.
(A) If the data in statement I alone is sufficient to answer the question, while the data in statement II alone is not sufficient to answer the question.
(B) If the data in statement II alone is sufficient to answer the question, while the data in statement I alone is not sufficient to answer the question.
(C) If the data either in statement I alone or in statement II alone is sufficient to answer the question.
(D) If the data given in both statements I and II together are not sufficient to answer the question.
(E) If the data in both statements I and II together are necessary to answer the question.
Eight persons from I to P are sitting around a square table in such a way that four persons sit at the corners and the remaining sit in the middle of the sides of the table, all are facing the centre. Who sits immediate right of P?
Statement I: L sits third to the right of K and sits on the corners. One person sits between L and J. P sits second to the right of J. I sits immediate right of N. M is not sitting adjacent to L.
Statement II: N and L face each other. Two persons sit between J and N. M sits third to the right of O, who sits adjacent to L. P sits immediate left of K.
  • a)
    A
  • b)
    B
  • c)
    C
  • d)
    D
  • e)
    E
Correct answer is option 'C'. Can you explain this answer?

If the data either in statement I alone or in statement II alone is sufficient to answer the question.

Directions: Read the passage given below and then answer the questions given below the passage. Some words may be underlined for your attention.
The big fuss about consensus management is an issue that boils down to a lot of noise about not much. The consensus advocates are great admirers of the Japanese management style. Consensus is what Japan is famous for. Well, I know the Japanese fairly well: They still remember Douglas MacArthur with respect, and they still bow down to their Emperor. In my dealings with them, I found that they talk a lot about consensus, but there's always one guy behind the scenes who ends up making the tough decisions. It doesn't make sense to me to think that Mr. Toyoda or Mr. Morita of Sony sits around in committee meetings and says, "We've got to get everybody in this organization, from the janitor up, to agree with this move". The Japanese believe in their workers' involvement early on in the decision-making process and in feedback from employees. And they probably listen better than we do. But you can bet that when the chips are down, the yen stops at the top guy's desk. So, we're wasting time trying to emulate something I don't think really exists.
Business structures are microcosms of other structures. There were no corporations in the fifteenth century. But there were families. There were city governments, provinces, and armies. There was the Church. All of them had, for lack of a better word, a pecking order.
Why? Because that's the only way you can steer clear of anarchy. Otherwise, you'll have somebody come in one morning and tell you: "Yesterday I got tired of painting red convertibles, so today I switched to all baby-blues on my own". You'll never get anything done right that way.
What's to admire about consensus management anyway? By its very nature, it's slow. It can never be daring. There can never be real accountability - or flexibility. About the only plus that I've been able to figure out is that consensus management means consistency of direction and objectives. And so much consistency can become faceless, and that's a problem too. In any event, I don't think it can work in this country. The fun of business for entrepreneurs, big or small, lies in the free enterprise system, not in the greatest agreement by the greatest number.
Q. Which of the following is true as per the given passage?
  • a)
    The author suggests that the Japanese practice consensus management in letter and spirit
  • b)
    Consensus management is a very daring practice
  • c)
    According to the author, consensus management cannot work in India
  • d)
    Japan is famous for its army
  • e)
    None of the above
Correct answer is option 'E'. Can you explain this answer?

Rahul Mehta answered
Reading the passage we find that
'To do something in letter and spirit' means 'to follow the rules surrounding it and their intentions completely' and nowhere in the entire passage does the author ask the Japanese to practise consensus management. Thus, Option (A) is incorrect.
The last paragraph states: 'What's to admire about consensus management anyway? By its very nature, it's slow. It can never be daring.' Thus, Option (B) is also incorrect.
Nowhere in the passage does the author talk about 'India' or about 'Japan's army'. Which shows that Option (C) and (D) are incorrect.
Thus, it is clear that the first four options are factually incorrect as they completely disregard what's been said in the passage.
Hence, the correct option is (E).

Which of the following is not a characteristic of High-level languages?
  • a)
    Machine code
  • b)
    Platform independent
  • c)
    Interactive execution
  • d)
    User-friendly
  • e)
    None of these
Correct answer is option 'A'. Can you explain this answer?

Machine code is not a characteristic of High-level languages. High-level languages are not in machine language. It is converted to machine language for further processing. A high-level language (HLL) is a programming language such as C, Fortran, or Pascal that enables a programmer to write programs that are more or less independent of a particular type of computer. Such languages are considered high-level because they are closer to human languages and further from machine languages.
Hence, the correct option is (A).

Which one of the following shows the syntax errors and also re-arranges the message?
  • a)
    Data link
  • b)
    Transport
  • c)
    Application
  • d)
    Presentation
  • e)
    None of these
Correct answer is option 'D'. Can you explain this answer?

Varun Dasgupta answered
The correct answer is option 'D', Presentation.

Syntax errors occur when the code is written in an incorrect format or structure, causing the code to fail during compilation or execution. In the given options, the only layer that is responsible for presentation and can potentially have syntax errors is the Presentation layer.

The Presentation layer is responsible for the formatting and presentation of data to the application layer. It takes care of tasks such as data compression, encryption, and decryption. This layer can also handle the re-arrangement of data, if necessary.

Here is a detailed explanation of why the Presentation layer can have syntax errors and how it can re-arrange the message:

Syntax Errors in the Presentation Layer:
1. The Presentation layer deals with the syntax and semantics of the data being transmitted. It ensures that the data is properly formatted and can be understood by the receiving system.
2. If the data being transmitted is not in the correct format or structure, the Presentation layer may encounter syntax errors.
3. For example, if the data is expected to follow a specific protocol or encoding scheme, any deviation from that format can lead to syntax errors.
4. These errors can occur if there are mistakes in the code or if the code does not adhere to the specified standards or protocols.

Re-arranging the Message in the Presentation Layer:
1. The Presentation layer is responsible for re-arranging the message if necessary.
2. This can involve tasks such as data compression, encryption, decryption, and protocol conversion.
3. For example, if the data needs to be compressed before transmission, the Presentation layer can apply compression algorithms to reduce the size of the data.
4. Similarly, if the data needs to be encrypted for secure transmission, the Presentation layer can encrypt the data using encryption algorithms.
5. The Presentation layer can also handle protocol conversion, where the data is converted from one format to another to ensure compatibility between different systems.

In conclusion, the Presentation layer is responsible for handling syntax errors and re-arranging the message if necessary. It ensures that the data is properly formatted and can be understood by the receiving system.

Consider the following statement regarding the AGNIPATH scheme. Which of the following statement is incorrect?
  • a)
    ‘AGNIPATH’ scheme is for the recruitment of youth in the Armed Forces.
  • b)
    The youth selected under the ‘AGNIPATH’ scheme will be known as Agniveers.
  • c)
    Agniveers will be enrolled under respective Service Acts for Five years.
  • d)
    One-time ‘Seva Nidhi’ package (Rs 11.71 Lakh) will be paid to Agniveers upon completion of the engagement period of four years.
  • e)
    None of these
Correct answer is option 'C'. Can you explain this answer?

Sharmila Yadav answered
Statement: ‘AGNIPATH’ scheme is for the recruitment of youth in the Armed Forces.

Explanation:
The statement is correct. The AGNIPATH scheme is indeed for the recruitment of youth in the Armed Forces.

Statement: The youth selected under the ‘AGNIPATH’ scheme will be known as Agniveers.

Explanation:
The statement is correct. The youth selected under the AGNIPATH scheme will be known as Agniveers.

Statement: Agniveers will be enrolled under respective Service Acts for Five years.

Explanation:
The statement is incorrect. Agniveers will be enrolled under respective Service Acts for Four years, not Five years.

Statement: One-time ‘Seva Nidhi’ package (Rs 11.71 Lakh) will be paid to Agniveers upon completion of the engagement period of four years.

Explanation:
The statement is correct. Agniveers will receive a one-time ‘Seva Nidhi’ package of Rs 11.71 Lakh upon completion of the engagement period of four years.

Statement: None of these

Explanation:
This option is incorrect as it contradicts the correct statements mentioned above.

Conclusion:
The incorrect statement is option C, which states that Agniveers will be enrolled under respective Service Acts for Five years. The correct information is that they will be enrolled for Four years.

Directions: Read the information given below and answer the question that follows.
U # 2 V B 1 * ? 9 L K $ 4 5 W O 7 & @ G F % S P
STEP I: The alphabets which are immediately preceded by an alphabet and immediately followed by a number are arranged at the end of the series in alphabetical order. (They are arranged just after P)
STEP II: The numbers which are immediately preceded by symbol and immediately followed by an alphabet are arranged between S and P in descending order.
STEP III: The symbol which are immediately followed by an alphabet interchange their positions with each other.
(STEP II is applied after STEP I and STEP III is applied after STEP II)
Q. What is the sum of all numbers, which are to the right of W in last step?
  • a)
    19
  • b)
    16
  • c)
    18
  • d)
    20
  • e)
    24
Correct answer is option 'C'. Can you explain this answer?

Step I:
Alphabet → Alphabet → Number
U # 2 V B 1 * ? 9 L K $ 4 5 W O 7 & @ G F % S P
New arrangement: U # 2 V 1 * ? 9 L K $ 4 5 W 7 & @ G F % S P B O
Step II:
Symbol → Number → Alphabet
U # 2 V 1 * ? 9 L K $ 4 5 W 7 & @ G F % S P B O
New arrangement: U # V 1 * ? L K $ 4 5 W 7 & @ G F % S 9 2 P B O
Step III:
Symbol → Alphabet
U # V 1 * ? L K $ 4 5 W 7 & @ G F % S 9 2 P B O
New arrangement: U V # 1 * L ? K $ 4 5 W 7 & G @ F S % 9 2 P B O
This is the final arrangement.
Numbers to the right of W in last step: 7, 9 and 2.
Sum = 7 + 9 + 2 = 18
So, the sum of all numbers, which are to the right of W in last step is 18.
Hence, the correct option is (C)

In the questions given below a sentence is there, three words are highlighted in underline in each. These three words may or may not be in their correct position. Also one of these words may be contextually inapt. You are required to interchange the words and choose the word which needs replacement in order to make the sentence grammatically and contextually correct. If the sentence is correct as it is, select ‘E’ as your option.
The Najafgarh zone of Municipal Corporation of Delhi has organized (a) a two-day cleanliness drive to conclude (b) of construction waste which will decompose (c) on Sunday.
  • a)
    acb; decompose
  • b)
    bac; conclude
  • c)
    cba; conclude
  • d)
    acb; organized
  • e)
    No replacement required
Correct answer is option 'A'. Can you explain this answer?

Surbhi Joshi answered
Explanation:

The given sentence is: "The Najafgarh zone of Municipal Corporation of Delhi has organized a two-day cleanliness drive to conclude of construction waste which will decompose on Sunday."

In this sentence, there are three words highlighted in underline - organized, conclude, and decompose. We need to interchange these words to make the sentence grammatically and contextually correct.

Interchanging the words:

If we interchange the words, the sentence becomes: "The Najafgarh zone of Municipal Corporation of Delhi has concluded a two-day cleanliness drive to organize of construction waste which will decompose on Sunday."

Explanation of the correction:

The corrected sentence is: "The Najafgarh zone of Municipal Corporation of Delhi has concluded a two-day cleanliness drive to organize of construction waste which will decompose on Sunday."

In the original sentence, the words "organized" and "conclude" are in the incorrect positions. The word "organized" should come after "concluded" to indicate that the cleanliness drive has been concluded. Additionally, the word "decompose" should be replaced with "dispose" as it is more contextually appropriate when referring to construction waste.

The corrected sentence conveys the intended meaning that the cleanliness drive has been concluded and the construction waste will be disposed of on Sunday.

Therefore, option A is the correct answer as it correctly interchanges the words and replaces the word "decompose" with "dispose" to make the sentence grammatically and contextually correct.

18 litres of a mixture contains milk and water in the ratio 5 : 4. How much milk should be added to this mixture, so that the resulting mixture has milk and water in the ratio 7 : 4?
  • a)
    4 litres
  • b)
    5 litres
  • c)
    3 litres
  • d)
    2 litres
  • e)
    6 litres
Correct answer is option 'A'. Can you explain this answer?

Kavya Saxena answered
Let the quantity of milk and water be 5x litres and 4x litres respectively.
As per the given details,
5x + 4x = 18
⇒​ 9x = 18
⇒ x = 2
Original quantity of milk in the mixture = 5x = 5 × 2 = 10 litres
Original quantity of water in the mixture = 4x = 4 × 2 = 8 litres
Also, let the amount of milk to be added be y.
⇒ 10 + y = 14
⇒ y = 4 litres
Hence, the correct option is (A).

P and Q entered into a partnership with initial investments of Rs. Y and Rs. Z respectively. After 18 months they both added some amount to their initial investments such that the investmentof P for the rest ofperiod is twice that of Qafter added. Profit share of P is 17220 out of total profit of Rs. 28290 after three years. If Z is 50% more than that of Y, find by what % ofQ increased his investment after 18 months?
  • a)
    200%
  • b)
    50%
  • c)
    100%
  • d)
    400%
  • e)
    None of these
Correct answer is option 'C'. Can you explain this answer?

Kavya Saxena answered
Let initial investment of P = 2a
So, initial investment of Q = 3a
Let investment of Q after 18 months = b
So, investment of P after 18 months = 2 x b = 2b
Now,
Ratio of profit share of P and Q = (2a x 1 + 2b x 1): (3a x 1 + b x 1) = (2a + 2b): (3a + b)
(2a + 2b)/ (2a + 2b + 3a + b) = 17220/28290
(2a + 2b) / (5a + 3b) = 14/23
23a + 23b = 35a + 21b
2b = 12a
So, value of b = 6a
Required % change = (6a – 3a)/3a x 100 = 100%
Hence, answer is option C

A transparent DBMS ___________.
  • a)
    Cannot hide sensitive information from users
  • b)
    Keep its logical structure hidden from users
  • c)
    Keeps its physical structure hidden from users
  • d)
    (A) and (B) both
  • e)
    None of these
Correct answer is option 'C'. Can you explain this answer?

Kavya Saxena answered
A DBMS that keeps its physical structure hidden from the user is known as a transparent DBMS. A DBMS may provide a various· levels of transparency. However, they all participate in the same overall objective: to make the use of the distributed database, equivalent to that of a centralized database.
We can identify four main types of transparency in a DBMS:
  • Distribution transparency
  • Transaction transparency
  • Performance transparency;
  • DBMS transparency.
Hence, the correct option is (C).

Read the following information carefully and answer the questions based on it.
700 girls were surveyed who played one or more games among ludo, chess and uno. Girls who played only ludo, only chess and only uno are 4%, 10% and 15%of the total girls surveyed respectively. Girls who played both ludo and chess but not uno, girls who played both uno and chess but not ludo, and girls who played both ludo and uno but not chess are ‘p%’, ‘q%’ and ‘r%’of the total girls surveyed. Values of ‘p’, ‘q’ and ‘r’ are consecutive multiples of 8.
Total number ofGirls surveyed are 75% more than the total number of boys surveyed. Boys who played only ludo are 150% more than the girls who played only ludo. Boys who played only chess are 12.5% of the boys surveyed. Boys who played uno and only ludo are in the ratio 9:10, respectively. Boys who played ludo and chess but not uno, uno and chess but not ludo and uno and ludo but not chess are 5%, 4% and 12% of the total girls surveyed respectively.
Q. Find the ratio between boys and girls who played all three games?
  • a)
    10:23
  • b)
    15:23
  • c)
    14:23
  • d)
    20:23
  • e)
    None of these
Correct answer is option 'A'. Can you explain this answer?

Anoushka Mehta answered
Calculation of the ratio between boys and girls who played all three games:
- Let's assume the total number of boys surveyed is 'x'.
- According to the given information, the total number of girls surveyed is 75% more than the total number of boys surveyed, so the total number of girls surveyed is 1.75x.

Girls who played all three games:
- Let the number of girls who played all three games be 'g'.
- It is given that the total number of girls who played all three games can be calculated by adding the individual percentages of girls who played only one game and those who played two games but not the third.
- Therefore, g = 4% + 10% + 15% + p% + q% + r%.

Boys who played all three games:
- Let the number of boys who played all three games be 'b'.
- Similarly, the number of boys who played all three games can be calculated by adding the individual percentages of boys who played only one game and those who played two games but not the third.
- Therefore, b = (150% * 4%) + 12.5% + (9/(9+10)) * 4% + 5% + 4% + 12%.

Ratio between boys and girls who played all three games:
- The ratio between boys and girls who played all three games is given by b/g.
- Substitute the values of 'g' and 'b' calculated above to find the ratio.
Therefore, the ratio between boys and girls who played all three games is 10:23.

Which among the following is a command of the Data Control Language, a subdivision of Structured Query Language?
  • a)
    Truncate
  • b)
    Rename
  • c)
    Update
  • d)
    Select
  • e)
    Revoke
Correct answer is option 'E'. Can you explain this answer?

Maya Kaur answered
Command of Data Control Language
Truncate is a command of the Data Control Language (DCL) in Structured Query Language (SQL). DCL commands are used to control access to data stored in a database.

Explanation:
- Truncate: The TRUNCATE command is used to delete all records from a table in a database. It is a quick way to remove all data from a table without affecting the table structure.
- Rename: The RENAME command is not a command of the Data Control Language. It is used to rename a table or a column in a table.
- Update: UPDATE is a command of the Data Manipulation Language (DML) in SQL. It is used to modify existing records in a table.
- Select: SELECT is a command of the Data Query Language (DQL) in SQL. It is used to retrieve data from a database.
- Revoke: REVOKE is a command of the Data Control Language in SQL. It is used to revoke privileges or permissions granted to a user or role.
In summary, among the given options, only the REVOKE command is a command of the Data Control Language in SQL.

Direction: In this question, a sentence has been divided into four parts marked as I, II, III, IV. You need to find which part/parts does not/do not have an error in terms of grammatical and contextual usage. If the sentence is contextually correct, mark "No Error" as your answer.
I - He was hiding in the Karnal
II - and were dropped at the bypass
III - by another associates on a bike,
IV - just 10 minutes before his arrest.
  • a)
    I
  • b)
    II
  • c)
    III
  • d)
    IV
  • e)
    No Error
Correct answer is option 'D'. Can you explain this answer?

In part I, the error lies in the usage of article the.
  • As this part states, a city named Karnal and according to the rules of usage of articles we use the article the before proper noun only when it is qualified by an adjective or a defining adjectival clause and hence, we will not use any article here.​
In part II, the error lies in the usage of the helping verb were instead of was.
  • As the subject of this sentence, He is singular; hence according to the Subject-Verb agreement rule, the singular helping verb was should follow it.
In part III, the error lies in the usage of the noun associates instead of associate.
  • As this part states, a determiner another which refers to one more person or thing of the same kind and hence noun that follow it should be singular hence correct noun to be used here is associate
Correct sentence: He was hiding in Karnal and was dropped at the bypass by another associate on a bike, just 10 minutes before his arrest.
Hence, the correct option is (D).

Directions: Rearrange the following five sentences (A), (B), (C), (D) and (E) in proper sequence to form a meaningful paragraph, then answer the questions given below them.
A. Volkswagen shares trade at about nine times the 2002 estimated earnings, compared to BMW's 19 and are the second cheapest in the sector.
B. The main problem with Volkswagen is the past.
C. A disastrous capital hike, an expensive foray into truck business and uncertainty about the reason for a share buyback have in past years left investors bewildered.
D. Many investors have been disappointed and frightened away.
E. Despite posting healthy profits, Volkswagen shares trade at a discount to peers due to bad reputation among investors.
Q. Which of the following should be the THIRD sentence after rearrangement?
  • a)
    (A)
  • b)
    (B)
  • c)
    (C)
  • d)
    (D)
  • e)
    (E)
Correct answer is option 'C'. Can you explain this answer?

Understanding the Sequence
To rearrange the sentences into a coherent paragraph, it is crucial to identify the logical flow of ideas regarding Volkswagen’s situation in the market.
Correct Sequence
1. (B) The main problem with Volkswagen is the past.
2. (C) A disastrous capital hike, an expensive foray into truck business and uncertainty about the reason for a share buyback have in past years left investors bewildered.
3. (D) Many investors have been disappointed and frightened away.
4. (E) Despite posting healthy profits, Volkswagen shares trade at a discount to peers due to bad reputation among investors.
5. (A) Volkswagen shares trade at about nine times the 2002 estimated earnings, compared to BMW's 19 and are the second cheapest in the sector.
Explanation of the Third Sentence
- Why (C) is Third:
- Sentence (B) introduces the overarching issue regarding Volkswagen by stating that the problem lies in its past.
- Sentence (C) follows logically as it elaborates on this past, detailing specific incidents that have caused investor confusion and disappointment.
- Thus, placing (C) as the third sentence effectively builds on the introduction of the problem in (B) and sets the stage for the consequences discussed in (D).
Conclusion
The sequence effectively illustrates Volkswagen's challenges while maintaining a logical progression from the introduction of the problem to the consequences and current market situation.

_________ are computer programs that are designed by attackers to gain root or administrative access to your computer.
  • a)
    Backdoors
  • b)
    Rootkits
  • c)
    Malware
  • d)
    Antiware
  • e)
    Spyware
Correct answer is option 'B'. Can you explain this answer?

Rootkits are computer programs that are designed by attackers to gain root or administrative access to your computer. Once an attacker gains admin privilege, it becomes a cakewalk for him to exploit your system.
Unlike most viruses, it is not directly destructive and unlike worms, its objective is not to spread infection as wide as possible.
Hence, the correct option is (B).

Directions: Arvind invests two sum of money A and B at 10% p.a. and 20% p.a respectively at CI for 2 years. The total sum of A and B was Rs. 40,000.
Q. How much amount was received by investing money A alone?
  • a)
    Rs. 2560
  • b)
    Rs. 3600
  • c)
    Rs. 2440
  • d)
    Rs. 2520
  • e)
    Rs. 2420
Correct answer is option 'E'. Can you explain this answer?

Mainak Ghosh answered
To find out how much amount was received by investing money A alone, we can use the concept of compound interest.

Let's assume the amount invested in A is x rupees. Therefore, the amount invested in B will be (40000 - x) rupees.

We know that the formula for compound interest is given by:

A = P(1 + r/n)^(nt)

Where:
A is the total amount including principal and interest
P is the principal amount (the initial amount invested)
r is the rate of interest (in decimal form)
n is the number of times that interest is compounded per year
t is the number of years

In this case, the principal amount for A is x rupees and the rate of interest is 10% p.a. The principal amount for B is (40000 - x) rupees and the rate of interest is 20% p.a. The time period is 2 years.

Now, let's calculate the amount received by investing money A alone.

Amount for A = x(1 + 0.10/1)^(1*2)
Amount for A = x(1 + 0.10)^2
Amount for A = x(1.10)^2
Amount for A = 1.21x

Next, let's calculate the amount received by investing money A and B together.

Amount for A and B = (40000 - x)(1 + 0.20/1)^(1*2)
Amount for A and B = (40000 - x)(1 + 0.20)^2
Amount for A and B = (40000 - x)(1.20)^2
Amount for A and B = 1.44(40000 - x)

We are given that the total sum of A and B is 40000 rupees. Therefore, we can write the equation:

1.21x + 1.44(40000 - x) = 40000

Simplifying this equation, we get:

1.21x + 57600 - 1.44x = 40000
0.23x = 17600
x = 17600/0.23
x = 2420

Hence, the amount received by investing money A alone is 2420 rupees. Therefore, the correct answer is option 'E' (Rs. 2420).

What is "virtual private Network "?
  • a)
    It is a private computer network of an organization where the remote users can transmit encrypted information through the server of the organization.
  • b)
    It is a computer network across a public internet that provides users access to their organization's network while maintaining the security of the information transmitted.
  • c)
    It is a computer network in which users can access a shared pool of computing resources through a service provider.
  • d)
    Both (A) and (B)
  • e)
    None of the statements (A),(B),(C) given above is a correct description of Virtual Private Network.
Correct answer is option 'B'. Can you explain this answer?

"Virtual private Network" is a computer network across a public internet that provides users access to their organization's network while maintaining the security of the information transmitted. A virtual private network (VPN) extends a private network across a public network and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.
Hence, the correct option is (B).

Without using the mouse or the arrow keys, what is the fastest way of getting to cell A1 in a spreadsheet?
  • a)
    Press Ctrl +Home
  • b)
    Press Home
  • c)
    Press Shift + Home
  • d)
    Press Alt + Home
  • e)
    Press Alt + Window
Correct answer is option 'D'. Can you explain this answer?

Jyoti Sarkar answered

Shortcut to Cell A1 in a Spreadsheet

To quickly navigate to cell A1 in a spreadsheet without using the mouse or arrow keys, you can use the following keyboard shortcut:


  • Press Alt + Home: This shortcut will take you to the beginning of the row and column, which is cell A1 in most spreadsheet programs like Microsoft Excel.



By pressing Alt + Home, you can efficiently move to cell A1 without the need to scroll or manually navigate through the spreadsheet. This shortcut is especially useful when working with large datasets or when you need to frequently return to the starting point of your spreadsheet.

If the second letter from the left end of all the words are taken together after arranging the letters of each word in alphabetical order within the word, then which of the following options will have maximum number of vowels?
  • a)
    Asset, Basic, Catch
  • b)
    Click, Death, Entry
  • c)
    Grand, Horse, Joint
  • d)
    Least, Magic, Never
  • e)
    Phone, Quite, Round
Correct answer is option 'D'. Can you explain this answer?

Understanding the Problem
To solve the problem, we need to identify the second letter of each word after rearranging the letters of the words in alphabetical order. Then, we will count the vowels among those letters.
Step-by-Step Breakdown
1. Arrange Each Word Alphabetically:
- Asset:
- Alphabetical order: a, e, s, s, t
- Second letter: e
- Basic:
- Alphabetical order: a, b, c, i, s
- Second letter: b
- Catch:
- Alphabetical order: a, c, c, h, t
- Second letter: c
- Letters Gathered for Option A: e, b, c
2. Repeat for Each Option:
- Option B (Click, Death, Entry):
- Click: c, c, i, k, l (second letter: c)
- Death: a, d, e, h, t (second letter: d)
- Entry: e, n, r, t, y (second letter: n)
- Letters: c, d, n
- Option C (Grand, Horse, Joint):
- Grand: a, d, g, n, r (second letter: d)
- Horse: e, h, o, r, s (second letter: h)
- Joint: i, j, n, o, t (second letter: j)
- Letters: d, h, j
- Option D (Least, Magic, Never):
- Least: a, e, l, s, t (second letter: e)
- Magic: a, c, g, i, m (second letter: c)
- Never: e, e, n, r, v (second letter: e)
- Letters: e, c, e
- Option E (Phone, Quite, Round):
- Phone: e, h, n, o, p (second letter: h)
- Quite: e, i, q, t, u (second letter: i)
- Round: d, n, o, r, u (second letter: n)
- Letters: h, i, n
3. Count the Vowels:
- Option A: e (vowel), b, c → 1 vowel
- Option B: c, d, n → 0 vowels
- Option C: d, h, j → 0 vowels
- Option D: e (vowel), c, e (vowel) → 2 vowels
- Option E: h, i (vowel), n → 1 vowel
Conclusion
The maximum number of vowels is found in Option D with a total of 2 vowels (e, c, e). Hence, the correct answer is option D.

Which one is a temporary storage area from information that we have copied or moved from one place to somewhere else?
  • a)
    Toolbar
  • b)
    Clipboard
  • c)
    Standby
  • d)
    Hibernate
  • e)
    None of these
Correct answer is option 'B'. Can you explain this answer?

Clipboard
  • The clipboard is a temporary storage area from information that we have copied or moved from one place to somewhere else.
  • We can select text or graphics and then use the cut or copy commands to move our selection to the clipboard, where it will be stored until we use the paste command to insert it elsewhere.

These devices provide a means of communication between a computer and outer world:
  • a)
    I/O
  • b)
    Storage
  • c)
    Compact
  • d)
    Drivers
  • e)
    Memory
Correct answer is option 'A'. Can you explain this answer?

Nikita Singh answered
The I/O i.e. the input/output devices provide a means of communication between the computer and the outer world. They are often referred to as peripheral devices sometimes. For example, Keyboard, mouse, printer, speaker and scanner etc.
Hence, the correct option is (A).

Direction: Read the following paragraph carefully and answer the following questions.
A, B, C and D are 4 friends. They possess some coins of different denominations of Rs. 1, Rs. 2, Rs. 5 and Rs. 10 such that the total value of money of each denomination is equal and is Rs. 120. A has 20 coins of Rs. 1 and Rs. 2 coins with A is 50% of Rs. 1 coins he has. Number of Rs. 5 coins with A is average of number of Rs. 2 and Rs. 5 coins with D. Total money with A is the average of money with B, C and D. The number of Rs. 10 coins with D is 1/4 of the total Rs. 10 coins and C has half of the total number of Rs. 1 and Rs. 10 coins. The total number of coins with A is average of the total coins with B and D. The number of Rs. 10 coins with A is same as that of D. The total number of Rs. 5 coins with B and C is half of Rs. 2 coins with B which is same as the number of Rs. 1 coins with A. Using this information answer the following questions.
Q. Find the total money D is having, if number of Rs. 1 coins with D is 15.
  • a)
    92
  • b)
    112
  • c)
    133
  • d)
    97
  • e)
    91
Correct answer is option 'D'. Can you explain this answer?

Based upon the information in question, we can draw a table which shows number of coins of different denominations with different people.
∵ In each denomination, value of money is Rs. 120
∴ Total money with all four of them is 4 × 120 = Rs. 480
A is having average money with B, C and D
⇒ A= (B+C+D)/3
⇒ 3A = B + C + D
Adding A both sides
⇒ 4A = A + B + C + D
⇒ A = 120
∴ Total money with A is Rs. 120
⇒ 20 × 1 + 10 × 2 + {(x + y) ÷ 2} × 5 + 3 × 10 = 120
⇒ {(x + y) ÷ 2} × 5 = 120 – 20 – 20 – 30 = 50
⇒ x + y = 20
We know the value of denomination 5 is Rs. 120
⇒ The number of coins of Rs. 5 = 24
∵ a + b = 10
⇒ (x + y) ÷ 2 + a + b + y = 24
⇒ 10 + 10 + y = 24
⇒ y = 4
⇒ x = 20 – 4 = 16
∵ Number of Rs. 1 coins is 15
∴ Total value of money with D = 15 × 1 + 16 × 2 + 4 × 5 + 3 × 10
⇒ D = 15 + 32 + 20 + 30 = 97
Hence, the correct option is (D).

Directions: Fill in the blanks with the suitable option.
Q. Egyptian President Abdel Fattah al-Sisi ______ re-elected for a second term on Thursday, _______ Egyptian state media reported.
  • a)
    Will be, the
  • b)
    Was, the
  • c)
    Was, a
  • d)
    Will be, an
  • e)
    Would, the
Correct answer is option 'B'. Can you explain this answer?

Kavya Saxena answered
The correct answer is option (B), i.e., Was, the.
The given sentence is in past tense. Only option (B) logically follows the idea conveyed by the sentence. Hence, other options can be eliminated.
So, the sentence can be rewritten as-
Egyptian President Abdel Fattah al-Sisi was re-elected for a second term on Thursday, the Egyptian state media reported.
Hence, the correct option is (B).

Which of these classes are the direct subclasses of the Throwable class?
  • a)
    Runtime Exception and Error class
  • b)
    Exception and Virtual Machine Error class
  • c)
    Error and Exception class
  • d)
    IO Exception and Virtual Machine Error class
  • e)
    None of these
Correct answer is option 'C'. Can you explain this answer?

Kabir Verma answered
According to the class hierarchy of Throwable class, the Error and Exception classes are the direct subclasses of the Throwable class, as shown below.
The Runtime Exception, IO Exception, and Virtual Machine Error classes are the sub-classes of the Exception and Error classes.
Hence, the correct option is (C).

Which of the following tool is used to generate API documentation in HTML format from doc comments in source code?
  • a)
    javap tool
  • b)
    javaw command
  • c)
    Javadoc tool
  • d)
    javah command
  • e)
    None of these
Correct answer is option 'C'. Can you explain this answer?

The Javadoc is a tool that is used to generate API documentation in HTML format from the Java source files. In other words, it is a program (tool) that reads a collection of source files into an internal form.
The Javadoc command line syntax is,
Javadoc [options] [packagenames] [sourcefiles] [@files]
The javap tool is used to get the information of any class or interface. It is also known as a disassembler. The javaw command is identical to java that displays a window with error information, and the javah command is used to generate native method functions.
Hence, the correct option is (C).

Cost price of article A is Rs. 80 more than cost price of article B. Article A is sold at a profit of 40% while article B is sold at a loss of 20%. If average selling price of both articles is Rs. 584, then find the total selling price of both the articles when article A is sold at a profit of 225% while article B is sold at a profit of 250%?
  • a)
    Rs. 3600
  • b)
    Rs. 3200
  • c)
    Rs. 3300
  • d)
    Rs. 3500
  • e)
    None of these
Correct answer is option 'D'. Can you explain this answer?

Given information:
Cost price of article A = Cost price of article B + Rs. 80
Profit on article A = 40%
Loss on article B = 20%
Average selling price of both articles = Rs. 584

To find:
Total selling price of both articles when article A is sold at a profit of 225% and article B is sold at a profit of 250%.

Solution:
Let's assume the cost price of article B as x.

1. Calculating the cost price of article A:
Cost price of article A = Cost price of article B + Rs. 80
Cost price of article A = x + 80

2. Calculating the selling price of article A:
Profit on article A = 40%
Selling price of article A = Cost price of article A + Profit on article A
Selling price of article A = (x + 80) + (40/100) * (x + 80)
Selling price of article A = x + 80 + 0.4x + 32
Selling price of article A = 1.4x + 112

3. Calculating the selling price of article B:
Loss on article B = 20%
Selling price of article B = Cost price of article B - Loss on article B
Selling price of article B = x - (20/100) * x
Selling price of article B = x - 0.2x
Selling price of article B = 0.8x

4. Calculating the total selling price of both articles:
Total selling price of both articles = Selling price of article A + Selling price of article B
Total selling price of both articles = (1.4x + 112) + 0.8x
Total selling price of both articles = 2.2x + 112

5. Given that the average selling price of both articles is Rs. 584:
Average selling price of both articles = Total selling price of both articles / 2
584 = (2.2x + 112) / 2
1168 = 2.2x + 112
2.2x = 1168 - 112
2.2x = 1056
x = 1056 / 2.2
x = 480

6. Calculating the total selling price of both articles when article A is sold at a profit of 225% and article B is sold at a profit of 250%:
Total selling price of both articles = (1.4x + 112) + (1.25 * 0.8x)
Total selling price of both articles = (1.4 * 480 + 112) + (1.25 * 0.8 * 480)
Total selling price of both articles = (672 + 112) + (1.25 * 0.8 * 480)
Total selling price of both articles = 784 + (1.25 * 0.8 * 480)
Total selling price of both articles = 784 + 480
Total selling price of both articles = 1264 + 480
Total selling price of both articles = 1744

Therefore, the total selling price of both articles when article A is sold at a profit of 225% and article B is sold at a profit of 250

The speed of Boat in still water is 40 Km/hr and the speed of the stream is 20 Km/hr. The distance between Point A and Point B is 480 Km. The boat started travelling downstream from A to B. In the midway, it was powered by an Engine due to which the speed of the Boat increased. Now Boat reached Point B and started back to point A with the help of the same engine. It took 19 hr for the entire journey. Then with the help of the engine, the speed of the boat increased by how many Km/hr?
  • a)
    16 Km/hr
  • b)
    20 Km/hr
  • c)
    24 Km/hr
  • d)
    28 Km/hr
  • e)
    30 Km/hr
Correct answer is option 'B'. Can you explain this answer?

Bibek Dasgupta answered
Given Information:

The speed of the boat in still water is 40 km/hr and the speed of the stream is 20 km/hr. The distance between point A and point B is 480 km. The boat started traveling downstream from A to B. In the midway, it was powered by an engine, due to which the speed of the boat increased. Now, the boat has reached point B and started back to point A with the help of the same engine. The entire journey took 19 hours.

Approach:

To find the speed increased by the engine, we need to calculate the time taken by the boat to travel from point A to the midway point and from the midway point to point B. Then, we can find the time taken by the boat to travel from point B to the midway point and from the midway point to point A. Finally, we can subtract the time taken for the downstream journey from the total time to find the time taken for the upstream journey.

Calculations:

Let's assume the speed of the boat with the engine is 'x' km/hr.

- Downstream Journey:
The speed of the boat relative to the stream (downstream) = Speed of the boat in still water + Speed of the stream
= 40 km/hr + 20 km/hr
= 60 km/hr

Time taken for the downstream journey = Distance / Speed
= 480 km / 60 km/hr
= 8 hours

- Upstream Journey:
The speed of the boat relative to the stream (upstream) = Speed of the boat in still water - Speed of the stream
= 40 km/hr - 20 km/hr
= 20 km/hr

Time taken for the upstream journey = Distance / Speed
= 480 km / 20 km/hr
= 24 hours

Total time taken for the journey = Time taken for downstream journey + Time taken for upstream journey
= 8 hours + 24 hours
= 32 hours

The time taken for the upstream journey = Total time taken for the journey - Time taken for the downstream journey
= 32 hours - 8 hours
= 24 hours

The speed increased by the engine = Speed of the boat in still water - Speed of the boat relative to the stream (upstream)
= 40 km/hr - 20 km/hr
= 20 km/hr

Conclusion:

Therefore, the speed of the boat increased by 20 km/hr with the help of the engine. Hence, the correct answer is option 'B'.

Direction: In the following number series, one of the numbers is wrong. Find out the wrong number.
15, 65, 125, 133, 60, 20
  • a)
    65
  • b)
    133
  • c)
    125
  • d)
    60
  • e)
    20
Correct answer is option 'B'. Can you explain this answer?

Identifying the Wrong Number
In this number series, we need to identify the wrong number out of 15, 65, 125, 133, 60, and 20.

Analysis of the Series
Let's analyze the series:
15 + 50 = 65
65 + 60 = 125
125 + 8 = 133
133 - 73 = 60
So, the pattern seems to be adding 50, then adding 60, then adding 8, and finally subtracting 73.

Identifying the Wrong Number
When we follow the pattern:
60 + 50 = 110 (instead of 133)
110 + 60 = 170
170 + 8 = 178
178 - 73 = 105
Therefore, the wrong number in the series is 133.

Directions: Rearrange the following five sentences (A), (B), (C), (D) and (E) in proper sequence to form a meaningful paragraph, then answer the questions given below them.
A. Volkswagen shares trade at about nine times the 2002 estimated earnings, compared to BMW's 19 and are the second cheapest in the sector.
B. The main problem with Volkswagen is the past.
C. A disastrous capital hike, an expensive foray into truck business and uncertainty about the reason for a share buyback have in past years left investors bewildered.
D. Many investors have been disappointed and frightened away.
E. Despite posting healthy profits, Volkswagen shares trade at a discount to peers due to bad reputation among investors.
Q. Which of the following should be the SECOND sentence after rearrangement?
  • a)
    (A)
  • b)
    (B)
  • c)
    (C)
  • d)
    (D)
  • e)
    (E)
Correct answer is option 'B'. Can you explain this answer?

Correct Sequence:

1. Main Problem with Volkswagen:
The paragraph should start with sentence (B) as it introduces the main problem with Volkswagen, setting the tone for the rest of the discussion.

Explanation:
The main problem with Volkswagen is highlighted in sentence (B), which mentions the past issues that have left investors disappointed and frightened away from the company.

2. Volkswagen's Shares Trade at a Discount:
Following the introduction of the main problem, the paragraph should then move on to discuss the impact of the past issues on Volkswagen's shares, as mentioned in sentence (E).

Explanation:
Sentence (E) explains that despite healthy profits, Volkswagen shares trade at a discount to peers due to their bad reputation among investors.
Therefore, the correct sequence should start with (B) and then move on to (E).

Direction: Rearrange the following five sentences/ group of sentences (A), (B), (C), (D) and (E) in the proper sequence to form a meaningful paragraph; then answer the questions given below them.
A. In front of the monument, there is a beautiful garden known as the Charbagh.
B. The Taj Mahal is a beautiful monument built in 1631 by an Emperor named Shah Jahan in memory of his wife Mumtaz Mahal and it is situated on the banks of river Yamuna at Agra.
C. The Taj Mahal is made up of white marble making it shine in moonlight.
D. The Taj Mahal is considered as one of the Seven Wonders of the World and many tourists come to see this beautiful structure from different parts of the world.
E. Inside the monument, there are two tombs of Shah Jahan and his wife Mumtaz Mahal.
Which of the following should be the FOURTH sentence after rearrangement?
  • a)
    A
  • b)
    B
  • c)
    C
  • d)
    D
  • e)
    E
Correct answer is option 'E'. Can you explain this answer?

Rahul Mehta answered
The given passage is about the well known monument Taj Mahal. Hence the first line should introduce the monument with regards to its builder and situation which is done in sentence B. This should be followed by any description of the building itself which is done by sentence c where it is mentioned the building material.
Sentence A and E which describes the various components of the building complex should come in next. Sentence A should be the third sentence as it states what is in the front of the monument and sentence E follows as it describes what is inside the monument. Sentence D is the last sentence of the passage. The correct order is BCAED.
Hence, the correct option is (E).

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