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All questions of 2012 for SSC CGL Exam

select the related letters / words / numbers from the given alternatives.
25: 125 :: 36 : ?
  • a)
    190
  • b)
    206
  • c)
    216
  • d)
    318
Correct answer is option 'C'. Can you explain this answer?

Ssc Cgl answered
Solution:

- The relationship between 25 and 125 can be understood as 25 multiplied by 5 equals 125.
- Similarly, the relationship between 36 and the missing number can be found by multiplying 36 by 6.
- Therefore, 36 * 6 = 216.
- Hence, the answer is option C: 216.

select the missing number from the given responses.
MNOPWXYZRSTUBCD?
  • a)
    A
  • b)
    E
  • c)
    1
  • d)
    F
Correct answer is option 'B'. Can you explain this answer?

Nisha K answered
So the alphabets have a recurrence of 4 letters in order like,
MNOP, WXYZ, RSTU. and the last recurrence has only three letters. so following the trend, it will be BCD and E.
so the right option would be b) E

If ab > 0 and the point (a, b) lies in the third quadrant, the quadrant in which the point (­5, - a) lies is
  • a)
    III
  • b)
    IV
  • c)
    I
  • d)
    II
Correct answer is option 'C'. Can you explain this answer?

Arnav Saini answered
Explanation:
The point (a, b) lies in the third quadrant, which means both a and b are negative.
Given ab > 0, this implies that a and b have opposite signs. Since a and b are both negative, it follows that ab is positive.

Determining the Quadrant for (-5, -a):
- We know that the x-coordinate of (-5, -a) is -5, which is negative, and the y-coordinate is -a, which is also negative.
- Since both coordinates are negative, the point (-5, -a) lies in the second quadrant.
Therefore, the quadrant in which the point (-5, -a) lies is II (option C).

The 1 east multi ple of 13 which when divided by 4, 5, 6, 7 leaves remainder 3 in each case is
  • a)
    3780
  • b)
    3783
  • c)
    2520
  • d)
    2522
Correct answer is option 'B'. Can you explain this answer?

Sunny Mdr answered
L.C.M of 4,5,6,7 = 420

Remainder = 3

Dividing numbers in the form, A= 420K+3

As 416K always divisible by 13 so , A= 416K+ (4K+3)

As, 416K divisible by 13 so 4K+3 also divisible by 39.

And we see that the smallest possible no for K is 9 for divisible by 13.

4K+3= 39
K= 9

A= 420*9+3
= 3783

select the missing number from the given responses.
46, 50, 47, 55, 49, 61, __?__
  • a)
    54
  • b)
    52
  • c)
    57
  • d)
    51
Correct answer is option 'B'. Can you explain this answer?

Arnav Saini answered
Missing Number in the Sequence:

Given sequence is 46, 50, 47, 55, 49, 61, __?__

To find the missing number, we need to figure out the pattern followed in the sequence.

Pattern in the Sequence:

The pattern followed in the sequence is not clear. However, if we observe carefully, we can see that every alternate number is higher than the previous one.

Using this pattern, we can find out the missing number in the sequence.

Solution:

As per the pattern, the next number after 61 should be lower than 61. So, we can eliminate option C (57) from the given responses.

Now, let's check the remaining options.

Option A (54) is higher than the previous number 61, so we can eliminate this option as well.

Option D (51) is lower than the previous number 61, which fits the pattern. Therefore, the missing number in the sequence is 51.

Hence, the correct answer is option B (52).

Final Answer: B (52)

AB and CD are two parallel chords drawn on two opposite sides of their parallel diameter such that AB = 6 cm, CD = 8 cm. If the radius of the circle is 5 cm, the distance between the chords, in cm, is
  • a)
    2
  • b)
    7
  • c)
    6
  • d)
    3
Correct answer is option 'B'. Can you explain this answer?

Arnav Saini answered
Given information:
- AB = 6 cm
- CD = 8 cm
- Radius of the circle = 5 cm

Calculating the distance between the chords:
- Let's consider the center of the circle as point O.
- Join OA, OB, OC, and OD.
- Since AB and CD are parallel chords, the distance between them is equal to the perpendicular distance between the chords from the center of the circle O.

Calculating the perpendicular distance from O to AB:
- In triangle OAB,
- OA = OB = radius = 5 cm (given)
- AB = 6 cm (given)
- Using Pythagorean theorem:
- (OA)^2 + (AB/2)^2 = (OB)^2
- (5)^2 + (3)^2 = (OB)^2
- 25 + 9 = (OB)^2
- OB = √34 cm
- The perpendicular distance from O to AB = OB = √34 cm

Calculating the perpendicular distance from O to CD:
- In triangle OCD,
- OC = OD = radius = 5 cm (given)
- CD = 8 cm (given)
- Using Pythagorean theorem:
- (OC)^2 + (CD/2)^2 = (OD)^2
- (5)^2 + (4)^2 = (OD)^2
- 25 + 16 = (OD)^2
- OD = √41 cm
- The perpendicular distance from O to CD = OD = √41 cm

Calculating the distance between the chords:
- Distance between the chords = √41 - √34
- ≈ 7 cm
Therefore, the distance between the chords is 7 cm, which corresponds to option B.

find the odd word/ number / letters / number pair from the given alternatives.
  • a)
    C X
  • b)
    D W
  • c)
    J Q
  • d)
    L R
Correct answer is option 'D'. Can you explain this answer?

Abhiram Mehra answered
Odd Word/Number/Letter/Number Pair

The odd word/number/letter/number pair from the given alternatives is to be identified.

Given options:
a)C X
b)D W
c)J Q
d)L R

Explanation:

The given options consist of pairs of letters. Out of these pairs, one pair is different from the others. The odd pair is the one that is not following a certain pattern or rule.

a) C X - No pattern or rule
b) D W - No pattern or rule
c) J Q - Both letters are in the same row of a QWERTY keyboard
d) L R - Both letters are in the same column of a QWERTY keyboard

Therefore, option 'd' is the odd pair as it follows a different pattern than the others.

Hence, the correct answer is option 'D'.

The next term of the series 1, 5, 12,24, 43 is
  • a)
    51
  • b)
    62
  • c)
    71
  • d)
    78
Correct answer is option 'C'. Can you explain this answer?

Abhinave S answered
1+(4)=5 , 5+(7)=12 , 12+(12)=24,
24+(19)=43

The numbers in the bracket are in a difference of 3,5,7,9,11,13 etc

So the next is 43+(28) = 71

The average age of a jury of 5 is 40. If a member aged 35 resigns and man aged 35 resign s and a m an aged bec ome s a m em ber, then the average age of the new jury is
  • a)
    30
  • b)
    38
  • c)
    40
  • d)
    42
Correct answer is option 'B'. Can you explain this answer?

Given information:
- The average age of a jury of 5 is 40.

To find:
- The new average age of the jury after a member aged 35 resigns and a man aged becomes a member.

Solution:
Let the ages of the five members of the original jury be a, b, c, d, and e.
Then, we know that:
(a + b + c + d + e)/5 = 40
a + b + c + d + e = 200

After a member aged 35 resigns, let's assume it was 'a' who resigned.
Then, the sum of the ages of the remaining four members would be:
b + c + d + e = 200 - 35 = 165

Now, a man aged becomes a member. Let's assume his age is 'f'.
Then, the sum of the ages of the new five members would be:
b + c + d + e + f = 165 + f

The new average age of the jury would be:
(b + c + d + e + f)/5 = (165 + f)/5 = 33 + (f/5)

Therefore, the new average age of the jury depends on the age of the man who becomes the new member. We do not have any information about his age, so we cannot calculate the exact new average age. However, we can see that the new average age would be less than 40, since 33 is less than 40.

Hence, the correct option is (B) 38.

Two circles with radii 5cm and 8 cm touch each other externally at a point A. If a straight line through t h e point Acuts the circles at points P and Q respectively, the AP : AQ is
  • a)
    8 : 5
  • b)
    5 : 8
  • c)
    3 : 4
  • d)
    4 : 5
Correct answer is option 'B'. Can you explain this answer?

Pranab Goyal answered
Solution:

Given, two circles with radii 5 cm and 8 cm touch each other externally at point A.

Let O1 and O2 be the centres of the circles with radii 5cm and 8 cm respectively.

Join O1A and O2A.

Let the straight line through A intersect the circles at points P and Q respectively.

Join OP and OQ.

We need to find AP : AQ.

Let AP = x and AQ = y.

To find x and y, we need to use the property that tangents drawn to a circle from an external point are equal in length.

Hence, PA = AQ.

By Pythagoras theorem, in right triangle O1AP, we have

O1P^2 = O1A^2 + AP^2

=> O1P^2 = (5)^2 + x^2

=> O1P^2 = 25 + x^2

Similarly, in right triangle O2AQ, we have

O2Q^2 = O2A^2 + AQ^2

=> O2Q^2 = (8)^2 + y^2

=> O2Q^2 = 64 + y^2

Since PA = AQ, we have

x + y = O1P + O2Q

=> x + y = OA

=> x + y = 13

Squaring both sides, we get

x^2 + 2xy + y^2 = 169

Substituting the values of O1P^2 and O2Q^2, we get

25 + x^2 + 2xy + 64 + y^2 = 169

=> x^2 + y^2 + 2xy = 80

=> (x + y)^2 - 2xy = 80

=> 13^2 - 2xy = 80

=> 169 - 80 = 2xy

=> 2xy = 89

=> xy = 89/2

Therefore, AP : AQ = x : y = 5 : 8.

Hence, the correct option is (b) 5 : 8.

In the following questions, a part of the sentence is Underline. Below are given alternatives to the bold part at (a), (b) and (c) which may improve the sentence. Choose the correct alternative. In case no improvement is needed, your answer is (d).
Q. The revue at the theatre got excellent reviews from most newspapers.
  • a)
    review
  • b)
    venue
  • c)
    revenue
  • d)
    No improvement
Correct answer is option 'D'. Can you explain this answer?

Arnav Saini answered
Understanding the Sentence Structure
The original sentence is: "The revue at the theatre got excellent reviews from most newspapers."
- The word "revue" refers to a type of theatrical performance that includes a variety of acts, such as songs, dances, and sketches, often with a satirical or comedic element.
- The sentence conveys that this particular performance received positive feedback from various newspapers.
Analyzing the Options
- Option (a): "review"
- This suggests a singular assessment, which does not fit the context since the sentence talks about multiple newspapers providing feedback.
- Option (b): "venue"
- This refers to the location where events take place. While it’s related to the theatre, it does not pertain to the performance itself or the feedback received.
- Option (c): "revenue"
- This refers to income generated, which is unrelated to reviews or feedback from newspapers.
Conclusion
- Each of the alternatives fails to correctly replace "revue" while maintaining the intended meaning of the sentence.
- Therefore, the original term "revue" is appropriate, and the sentence is already correct as is.
Final Answer
- The correct answer is option (d): No improvement. The original sentence effectively communicates the intended message without needing any changes.

Some parts of the sentences have errors and some have none. Identify which part of the sentence contains an error. Provide the number corresponding to that part as your answer. If there is no error, then select (d).
 What is / the use of me / attending the session ?
  • a)
     What is
  • b)
    the use of me
  • c)
    attending the session ?
  • d)
    No error (d)
Correct answer is option 'B'. Can you explain this answer?

Understanding the Error in the Sentence
In the sentence "What is the use of me attending the session?" the part that contains the error is option (b) "the use of me".
Why is it Incorrect?
- The phrase "the use of me" is grammatically incorrect in this context.
- The correct form should be "the use of my" because "my" is a possessive pronoun that properly describes the action of attending the session.
Correct Structure
- The sentence should read: "What is the use of my attending the session?"
- Here, "my attending" correctly indicates that the action of attending belongs to the speaker.
Key Points to Remember
- Possessive Pronouns: In English, when referring to actions or nouns that belong to someone, use possessive pronouns (my, your, his, her, etc.) rather than objective pronouns (me, you, him, her, etc.).
- Grammatical Accuracy: Ensuring grammatical accuracy improves clarity and comprehension in communication.
By understanding these rules, one can avoid common grammatical mistakes and enhance their writing skills.

In each of the following questions, find the odd number/ letters / word / name / number pair from the given alternatives.
  • a)
    B.G. Tilak
  • b)
    Madan Mohan Malviya
  • c)
    V.D. Savarkar
  • d)
    Lajpat Rai
Correct answer is option 'B'. Can you explain this answer?

Abhiram Mehra answered
Explanation of the Odd Option
In the context of Indian history and the freedom struggle, each of the names listed represents prominent leaders who played significant roles. However, there is a distinctive reason why option 'B' is identified as the odd one out.
Contributions and Focus Areas
- B.G. Tilak: Known as the 'Father of Indian Unrest', Tilak was a key figure in the early phase of the Indian independence movement. He advocated for self-rule and was instrumental in mobilizing the masses.
- V.D. Savarkar: A revolutionary and staunch advocate of Hindutva, Savarkar is known for his radical approach towards the independence struggle, including the idea of 'complete independence'.
- Lajpat Rai: A prominent leader in the Indian National Congress, Rai was involved in various protests against British policies and was known for his advocacy for social reforms.
Unique Position of Madan Mohan Malviya
- Madan Mohan Malviya: While he was indeed a significant figure, he is distinct because he is primarily recognized for his contributions to education and social reform rather than direct revolutionary activities. Malviya founded the Banaras Hindu University and emphasized the importance of education in achieving independence.
Conclusion
In summary, while all the figures listed are important in the context of India's freedom struggle, Madan Mohan Malviya's focus on education and his approach to social reform set him apart from the other leaders who were more directly involved in revolutionary activities. This difference in contributions and focus makes option 'B' the odd one out.

Directions (39-40): In each of t he following questions, select the missing number from the given responses.
7 8 6
4 9 5
3 2 ?
25  70  29
  • a)
    9
  • b)
    8
  • c)
    1
  • d)
    5
Correct answer is option 'C'. Can you explain this answer?

Ishaan Roy answered
Missing Number in the First Sequence: 7 8 6

To find the missing number in the given sequence 7 8 6, we need to observe the pattern or logic behind the given numbers. Let's analyze the sequence:

- The first number, 7, is followed by 8.
- The second number, 8, is followed by 6.

From this analysis, we can see that each number is being replaced by its adjacent number in reverse order. Therefore, the missing number can be found by replacing the second number, 8, with its adjacent number, which is 6.

So, the missing number in the first sequence is 6.

Missing Number in the Second Sequence: 4 9 5

Now, let's analyze the second sequence:

- The first number, 4, is followed by 9.
- The second number, 9, is followed by 5.

Similar to the first sequence, each number is being replaced by its adjacent number in reverse order. Therefore, the missing number can be found by replacing the second number, 9, with its adjacent number, which is 5.

So, the missing number in the second sequence is 5.

Missing Number in the Third Sequence: 3 2 ?

Moving on to the third sequence, let's analyze it:

- The first number, 3, is followed by 2.
- The second number, 2, is followed by the missing number.

Following the pattern observed in the previous sequences, each number is being replaced by its adjacent number in reverse order. Therefore, the missing number can be found by replacing the second number, 2, with its adjacent number, which is 1.

So, the missing number in the third sequence is 1.

Missing Number in the Fourth Sequence: 25 70 29

Finally, let's analyze the fourth sequence:

- The first number, 25, is followed by 70.
- The second number, 70, is followed by 29.

Unlike the previous sequences, there is no clear pattern of replacing each number with its adjacent number in reverse order. Therefore, we need to analyze the numbers further to identify the logic behind them.

By observing the difference between the first and second numbers, we can see that it is 70 - 25 = 45. Similarly, the difference between the second and third numbers is 70 - 29 = 41.

Based on this pattern, we can find the missing number by subtracting 41 from the second number, 70.

So, the missing number in the fourth sequence is 29 - 41 = -12.

However, none of the given options (-12) match this result. Therefore, there may be an error in the options provided, or the sequence may not follow a clear pattern.

Find the odd one.
  • a)
    Marble
  • b)
    Blackboard
  • c)
    Chalk
  • d)
    Slaked lime
Correct answer is option 'A'. Can you explain this answer?

Malavika Rane answered
Explanation:
To find the odd one, we need to identify the item that does not belong to the same category as the others. Let's analyze each option:

Marble: Marble is a type of stone that is commonly used for various applications such as building materials, sculptures, and decorative purposes. It is a natural material.

Blackboard: A blackboard is a surface that is typically made of a smooth, dark material such as slate or a synthetic material like porcelain enamel. It is used for writing or drawing with chalk.

Chalk: Chalk is a soft, white porous sedimentary rock that is formed from the accumulation of the remains of marine microorganisms. It is commonly used for writing or drawing on blackboards.

Slaked lime: Slaked lime, also known as hydrated lime or calcium hydroxide, is a white powdery substance that is used in various applications such as construction, agriculture, and water treatment. It is produced by adding water to quicklime.

Analysis:
- Marble, blackboard, chalk, and slaked lime are all related to the field of construction or education.
- Marble is a natural stone used for construction and decoration.
- Blackboard is a surface used for writing and drawing with chalk.
- Chalk is a writing instrument used on blackboards.
- Slaked lime is a substance used in construction and water treatment.

Conclusion:
The odd one out is Marble because it does not directly relate to education or writing like the other options. It is a natural stone used for construction and decoration purposes.

In which country does the Speaker, soon after getting elected, sever all kinds of relations with his party ?
  • a)
    France
  • b)
    Canada
  • c)
    U.S.A.
  • d)
    England
Correct answer is option 'D'. Can you explain this answer?

Varun Kapoor answered
The Speaker in Engalnd, by convention, severs all ties with his or her political party, as it is considered essential that the Speaker be seen as an impartial presiding officer

Directions (22- 23 ) : In each of the following questions, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
c _ ab _ ca _ bc _ a
  • a)
    bcab
  • b)
    abcb
  • c)
    ba cb
  • d)
    cbac
Correct answer is option 'C'. Can you explain this answer?

Abhiram Mehra answered
The given letter series is: c _ ab _ ca _ bc _ a

To complete the series, we need to find a set of letters that can be sequentially placed in the gaps to form a meaningful pattern.

Let's analyze the given series:

- The first letter is 'c'.
- The last letter is 'a'.
- The other letters are 'ab', 'ca', and 'bc'.

We can observe that the first and last letters of the series are fixed, and we need to find a pattern for the middle letters.

Let's try the options one by one:

a) bcab: If we place these letters in the gaps, the series becomes: cbcabcbca. This does not form a meaningful pattern.

b) abcb: If we place these letters in the gaps, the series becomes: cabcbcabca. This does not form a meaningful pattern.

c) bacb: If we place these letters in the gaps, the series becomes: cbacbacba. This forms a pattern where the first two letters are reversed in the second and third groups.

d) cbac: If we place these letters in the gaps, the series becomes: cbcabcbca. This does not form a meaningful pattern.

Therefore, the correct set of letters that sequentially placed at the gaps in the given letter series to complete it is 'bacb'.

In each of the following questions, find the odd number/ letters / word / name / number pair from the given alternatives.
  • a)
    MRZQ
  • b)
    ZMSR
  • c)
    PQST
  • d)
    BTEP
Correct answer is option 'D'. Can you explain this answer?

Arnav Saini answered
Finding the Odd One Out

Introduction:
In this question, we are given a set of letters - MRZQ, ZMSR, PQST, and BTEP. We need to find out the odd letter out of them. Let's solve the question step by step.

Explanation:
To solve this question, we need to look for a pattern or a similarity between the given letters. Let's analyze each option one by one.

a) MRZQ - There is no apparent pattern or similarity between these letters. Therefore, we cannot determine the odd letter out based on the given information.

b) ZMSR - Again, there is no clear pattern or similarity between these letters. Therefore, we cannot determine the odd letter out based on the given information.

c) PQST - We can observe that all the letters in this option are consecutive letters of the English alphabet. Therefore, this option does not fit with the other options.

d) BTEP - We can observe that the letters in this option are in reverse order as compared to the other options. Therefore, this option is the odd one out.

Conclusion:
By analyzing each option, we can conclude that option d) BTEP is the odd one out as it does not fit with the pattern of the other options.

In each of the following questions, a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
__?__ , LMKJNL, MONLKM, NOPLMN,OQPMNO, PQRNQP
  • a)
    IKMIJL
  • b)
    KJLIMK
  • c)
    MJLIMK
  • d)
    LJKILM
Correct answer is option 'B'. Can you explain this answer?

Arnav Saini answered
Series Completion: SSC CGL

Given series: __?__ , LMKJNL, MONLKM, NOPLMN, OQPMNO, PQRNQP

Option Analysis:

A) IKMIJL
B) KJLIMK
C) MJLIMK
D) LJKILM

To complete the series, we need to find the missing term.

Observations:

- The first three letters of each term are in alphabetical order (LMNO)
- The last three letters of each term are in reverse alphabetical order (NLKJIM)

Based on these observations, we can try to find a logical pattern to complete the series.

Pattern:

- The missing term must start with the letter K (since the first three letters are in alphabetical order)
- The missing term must end with the letters KJI (since the last three letters are in reverse alphabetical order)
- The missing term must have the letters KI in the middle (to maintain the pattern of alternating letters)

Using this pattern, we can eliminate options A, C, and D, as they do not fit the pattern.

Option B (KJLIMK) fits the pattern and completes the series.

Therefore, the correct answer is option B (KJLIMK).

In each of the following questions, find the odd number/ letters / word / name / number pair from the given alternatives.
  • a)
    Horse
  • b)
    Ox
  • c)
    Dog
  • d)
    Cow
Correct answer is option 'C'. Can you explain this answer?

Abhiram Mehra answered
Odd One Out - Animals

Explanation:
The given options are related to animals. Let's check each option one by one.

Horse:
A horse is a domesticated mammal that belongs to the Equidae family. It is commonly used for riding, racing, and as a work animal. So, it is a valid option.

Ox:
An ox is a domesticated mammal that belongs to the Bovidae family. It is commonly used as a draft animal. So, it is also a valid option.

Dog:
A dog is a domesticated mammal that belongs to the Canidae family. It is commonly used as a pet, for guarding, and as a working animal. So, it is a valid option.

Cow:
A cow is a domesticated mammal that belongs to the Bovidae family. It is commonly used for its milk and meat. So, it is also a valid option.

Conclusion:
From the above options, all are mammals and domesticated animals. But, the odd one out is 'Dog' because it belongs to the Canidae family, whereas the other three animals belong to the Bovidae and Equidae families.

Directions (10-18): In each of t he following questions, find the odd word/ number / letters / number pair from the given alternatives.
  • a)
    VWY
  • b)
    QRT
  • c)
    LMO
  • d)
    JKL
Correct answer is option 'D'. Can you explain this answer?

Abhiram Mehra answered
Odd Word/Number/Letter/Number Pair

Explanation:

To solve this question, we need to find the odd word/number/letter/number pair from the given alternatives.

a) VWY - These are consecutive letters in the alphabet.

b) QRT - These are consecutive letters in the alphabet.

c) LMO - These are consecutive letters in the alphabet.

d) JKL - These are consecutive letters in the alphabet but in reverse order.

Hence, the odd word/number/letter/number pair is option 'D' (JKL).

Which one of the following countries has the highest natural gas reserves ?
  • a)
    Russia
  • b)
    Saudi Arabia
  • c)
    Iran
  • d)
    Qatar
Correct answer is option 'A'. Can you explain this answer?

Explanation:

Natural gas reserves: Natural gas is a crucial source of energy and is used for various purposes such as cooking, heating, and electricity generation. The natural gas reserves refer to the amount of natural gas that is estimated to be present in a country's underground deposits.

Russia: Russia is the country with the highest natural gas reserves in the world. According to the BP Statistical Review of World Energy 2021, Russia has approximately 38.9 trillion cubic meters (tcm) of proven natural gas reserves, which accounts for around 19.8% of the world's total natural gas reserves. Russia is also the largest producer and exporter of natural gas in the world.

Saudi Arabia: Saudi Arabia is the country with the largest oil reserves in the world, but it has relatively small natural gas reserves compared to other countries. According to the BP Statistical Review of World Energy 2021, Saudi Arabia has approximately 8.6 tcm of proven natural gas reserves.

Iran: Iran has the second-largest natural gas reserves in the world. According to the BP Statistical Review of World Energy 2021, Iran has approximately 33.5 tcm of proven natural gas reserves, which accounts for around 17% of the world's total natural gas reserves.

Qatar: Qatar is a small country with significant natural gas reserves. According to the BP Statistical Review of World Energy 2021, Qatar has approximately 24.7 tcm of proven natural gas reserves, which accounts for around 12.5% of the world's total natural gas reserves. Qatar is also the largest exporter of liquefied natural gas (LNG) in the world.

Conclusion: In conclusion, Russia has the highest natural gas reserves in the world, followed by Iran and Qatar. Saudi Arabia has relatively small natural gas reserves compared to other countries.

Directions (24-27): In each of the following questions, select the missing number from the given responses. 
500, 484, 459, _?  , 374
  • a)
    384
  • b)
    432
  • c)
    418
  • d)
    423
Correct answer is option 'D'. Can you explain this answer?

It is clear from the given series, there are substractions of squares of numbers from 4.
As 500 - ( 42 )  = 484    
484 -  ( 5 2 )     = 459  
459 - ( 6 2 ) = 423    
423 -(7 2 ) = 374

A ship is moving at a speed of 30 km/hr. To know the depth of the ocean beneath it, it sends a radio wave which travels at a speed 200 m/s. The ship receives the signal after it has moved 500 m. The depth of the ocean is
  • a)
  • b)
    12 km
  • c)
  • d)
    8 km
Correct answer is option 'A'. Can you explain this answer?

Maruti Prasad answered
(2d / 200) = (500 / 8.33) 

Solve for d:

d = (500 * 200) / (2 * 8.33)

d = 60000 / 16.66

d ≈ 3600 meters

Convert to kilometers:

d ≈ 3.6 km

Since the answer choices are in terms of square roots, simplify the answer:

d ≈ (sqrt(143))/2 * km

Of the following, which is the fastest?
  • a)
    CD-ROM
  • b)
    RAM
  • c)
    Registers
  • d)
    Cache
Correct answer is option 'C'. Can you explain this answer?

Ishaan Roy answered
Registers are the fastest among the given options.

Registers:
- Registers are small, high-speed storage locations that are part of the CPU.
- They hold data that the CPU is currently processing or about to process.
- Registers are used to store data that is frequently accessed by the CPU, such as data used in arithmetic operations.
- Registers are also used to hold memory addresses, instruction pointers, and other important CPU information.

CD-ROM:
- CD-ROM stands for Compact Disc Read-Only Memory.
- It is a type of optical disc used for storage.
- Data is read from a CD-ROM using a laser beam.
- CD-ROMs are relatively slow compared to other storage devices, such as hard drives or solid-state drives.

RAM:
- RAM stands for Random Access Memory.
- It is a type of computer memory that stores data temporarily.
- RAM is used by the CPU to store data that is currently being processed.
- RAM is faster than most storage devices, but slower than registers.

Cache:
- Cache is a type of memory used to store frequently accessed data.
- It is faster than most storage devices, but slower than registers.
- Cache is used to improve the performance of a computer by reducing the number of times data needs to be accessed from slower storage devices, such as hard drives or RAM.

In conclusion, registers are the fastest among the given options because they are part of the CPU and hold data that is currently being processed. They are faster than RAM and cache because they are smaller and have a shorter access time. CD-ROMs are relatively slow compared to other storage devices and are not used for processing data.

find the odd word/ number / letters / number pair from the given alternatives.
  • a)
    Rooster
  • b)
    Buck
  • c)
    Gander
  • d)
    Peahen
Correct answer is option 'B'. Can you explain this answer?

Ishaan Roy answered
Odd Word from Given Alternatives

Explanation:

In the given alternatives, all the words except 'Buck' are names of male birds. Buck is a term used for male deer, whereas the others are specific to birds. Therefore, the odd word from the given alternatives is 'Buck'.

Let BE and CF be the two medians of a ΔABC and G be their intersection. Also let EF cut AG at O. Then AO : OG is
  • a)
    1 : 1
  • b)
    1 : 2
  • c)
    2 : 1
  • d)
    3 : 1
Correct answer is option 'B'. Can you explain this answer?

EduRev SSC CGL answered
  • Let D be the midpoint of BC, so AD is the third median and G is the centroid (where medians meet).
  • E and F are midpoints of AC and AB, so EF is parallel to BC (midpoint theorem).
  • In triangle ABC, the line through midpoints (EF) cuts the median AD at a point O such that AO is half of AD (since triangle AEF is similar to ABC with scale 1/2).
  • The centroid G divides AD in the ratio 2:1 from A, so AG = (2/3)·AD.
Along AD:
  • AO = (1/2)·AD
  • OG = AG − AO = (2/3 − 1/2)·AD = (1/6)·AD
Therefore, AO : OG = (1/2) : (1/6) = 3 : 1.

A person takes a loan of R s. 10,0000 partly from a bank at 8% p.a. and remaining from another bank at 10% p.a. He pays a total in te rest o f Rs. 950 per annum.Amount of loan taken from the first bank (in Rs.) is
  • a)
    2500
  • b)
    5200
  • c)
    2050
  • d)
    5020
Correct answer is option 'A'. Can you explain this answer?

Ssc Cgl answered
  1. Let x = amount (in Rs) taken at 8% p.a.
    Then (10,000 − x) = amount taken at 10% p.a.
  2. Total annual interest = interest from first bank + interest from second bank
    = 0.08x + 0.10(10,000 − x)
  3. Given total annual interest = 950, so:
    0.08x + 0.10(10,000 − x) = 950
  4. Simplify:
    0.08x + 1,000 − 0.10x = 950
    −0.02x + 1,000 = 950
    −0.02x = −50
    x = (−50)/(−0.02) = 2,500

In the following quest ions, sentences are given with blanks to be filled in with an appropriate word(s).
Q.It is a story of twomen and a batch of armoured cars.
  • a)
    deceased
  • b)
    diseased
  • c)
    decrepit
  • d)
    defeated
Correct answer is option 'C'. Can you explain this answer?

The sentence describes two men and a group of decrepit armoured cars. The word decrepit means something that is old and in very bad condition. In this context, it fits best because it suggests that the armoured cars are not only outdated but also likely to be in a state of disrepair.
Here’s why the other options are not suitable:
  • Deceased: This refers to someone who has died, which does not fit the context.
  • Diseased: This means affected by disease, and it is not applicable to cars.
  • Defeated: This term relates to losing in a battle or competition, which is irrelevant here.
Thus, the correct word to fill the blank is decrepit.

In each of the following questions, a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
A G L P __?__ UV
  • a)
    R
  • b)
    S
  • c)
    Q
  • d)
    T
Correct answer is option 'B'. Can you explain this answer?

Ishaan Roy answered
Understanding the Series
The series given is: A, G, L, P, __?__, U, V. To find the missing term, we need to identify the pattern in the series.
Identifying the Pattern
- The letters in the series appear to be grouped based on their position in the English alphabet.
- Let's convert each letter to its corresponding numeric position:
- A = 1
- G = 7
- L = 12
- P = 16
- U = 21
- V = 22
Finding the Differences
Now, let's examine the differences between the positions of consecutive letters:
- From A (1) to G (7): 7 - 1 = 6
- From G (7) to L (12): 12 - 7 = 5
- From L (12) to P (16): 16 - 12 = 4
- From P (16) to the missing letter: This should be 3 (as the pattern decreases by 1 each time).
To find the position of the missing letter:
- P (16) + 3 = 19
Identifying the Missing Letter
- The 19th letter of the alphabet is S.
Conclusion
Thus, the missing term in the series is S.
Final Answer
The correct option is b) S.

In each of the following questions, find the odd number/ letters / word / name / number pair from the given alternatives.
  • a)
    (35, 56)
  • b)
    (44, 68)
  • c)
    (24, 44)
  • d)
    (32, 26)
Correct answer is option 'B'. Can you explain this answer?

Understanding the Problem
In this question, we need to identify the odd pair of numbers from the given options based on a mathematical rule or pattern.
Analyzing the Options
Let's break down each pair:
  • a) (35, 56):
    - The difference is 21.
    - 35 is odd, 56 is even.
  • b) (44, 68):
    - The difference is 24.
    - Both numbers are even.
  • c) (24, 44):
    - The difference is 20.
    - Both numbers are even.
  • d) (32, 26):
    - The difference is 6.
    - Both numbers are even.

Identifying the Odd Pair
- The key to identifying the odd pair lies in the characteristics of the numbers:
- Options c, d, and a have either both even or both odd numbers, or a clear pattern in their differences.
- Option b is distinct because both numbers are even, but they do not follow the same pattern as the others regarding their differences.
Conclusion
Thus, the odd pair is (44, 68) because it is the only pair where both numbers are even but do not share a common difference pattern with the other pairs, leading to the conclusion that option B is the correct answer.

In the following questions, four alternatives are given for the idiom/phrase. Choose the alternative which best expresses the meaning of the idiom/ phrase as your answer.
A wolf in sheep’s clothing
  • a)
    a woman who looks younger than her age
  • b)
    a man of high birth but in poor condition
  • c)
    a wicked man who pretends to be good
  • d)
    a good for nothing person
Correct answer is option 'C'. Can you explain this answer?

Understanding the Idiom
The idiom "a wolf in sheep’s clothing" describes someone who appears harmless or friendly but is actually malicious or deceitful. This phrase originates from the Bible, specifically from the Book of Matthew, where it warns against false prophets who disguise their true nature.
Meaning Breakdown
- Deceptive Nature: The idiom emphasizes the idea of camouflage; just as a wolf disguises itself in sheep's clothing to blend in and prey upon sheep, a person may hide their true intentions behind a façade of kindness or innocence.
- False Pretenses: It highlights how individuals can manipulate appearances to gain trust and exploit others. Such people are often skilled at hiding their true motives, making them particularly dangerous.
Why Option C is Correct
Among the options provided:
- Option A ("a woman who looks younger than her age") does not relate to deception or malicious intent.
- Option B ("a man of high birth but in poor condition") suggests social status rather than deceitfulness.
- Option D ("a good for nothing person") lacks the nuance of pretense and disguise inherent in the idiom.
- Option C ("a wicked man who pretends to be good") perfectly encapsulates the essence of "a wolf in sheep’s clothing." It portrays someone who is inherently bad yet masks their true nature with a guise of goodness, aligning precisely with the idiom's meaning.
Conclusion
Thus, the correct answer is option C, as it accurately reflects the deceptive characteristics described by the idiom "a wolf in sheep's clothing." Understanding such idioms enriches language comprehension and enhances communication skills.

If SEASONAL i s writt en as ESSANOLA, how can SEPA RATE be written in that code?
  • a)
    SEAPARET
  • b)
    ESPARATE
  • c)
    ESPAARTE
  • d)
    ESAPARET
Correct answer is option 'D'. Can you explain this answer?

Abhiram Mehra answered
Understanding the Code Pattern
To decode how the word "SEASONAL" is transformed into "ESSANOLA," we need to identify the pattern used in the transformation.
Analyzing the Transformation
- The first letter 'S' remains the same.
- The second letter 'E' is moved to the front.
- The third letter 'A' also remains in the same position.
- The fourth letter 'S' and the fifth letter 'O' are swapped.
- The sixth letter 'N' remains the same.
- The seventh letter 'A' is moved to the end.
- The eighth letter 'L' remains the same.
Following this pattern, we can summarize the transformation steps:
1. Keep the first letter.
2. Move the second letter to the front.
3. Keep the third letter.
4. Swap the fourth and fifth letters.
5. Keep the sixth letter.
6. Keep the seventh letter and move it to the end.
7. Keep the eighth letter.
Applying the Same Pattern to "SEPA RATE"
Now, let's apply this transformation to the word "SEPA RATE":
1. Keep 'S' (first letter).
2. Move 'E' (second letter) to the front.
3. Keep 'P' (third letter).
4. Swap 'A' (fourth letter) and 'R' (fifth letter).
5. Keep 'A' (sixth letter).
6. Keep 'T' (seventh letter).
7. Move 'E' (eighth letter) to the end.
The transformation results in:
- S (first)
- E (moved to front)
- P (third)
- R (swapped with A)
- A (kept as is)
- T (kept as is)
- E (moved to end)
So, the final arrangement will be "ESAPARET."
Conclusion
Thus, the correct answer to how "SEPA RATE" can be written in that code is option 'D': ESAPARET.

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