RRB JE CBT 1 - Full Test 6 - Railways MCQ

Let weight of Shivam be ‘x’.

Weight of Tipu is twice of the weight of Shivam: 2x,

Weight of Roma is twice of the weight of Tipu: 4x,

Weight of Karan is one-fourth of the weight of Roma: ‘x’,

Weight of Alok is twice the weight of Karan: 2x

Hence, weight of Roma is greater than all other persons.

Hence, 4 is the correct answer.

Here in all the figure, O is vertically opposite to X and + is vertically opposite to -, except figure D

Hence, Fig: -D is the odd image among the given figure.

• Vijay Diwas is celebrated every year in India on 16 December.
• The day marks the Indian military's victory over Pakistan in 1971 during the war for the independence of Bangladesh from Pakistan.
• On this day, 93,000 members of Pakistani troops surrendered to the Indian Army and Mukti Bahini, calling an end to the Indo-Pak war of 1971.
• Kargil Vijay Diwas, named after the success of Operation Vijay.
• On this day, 26 July 1999, India successfully took command of the high outposts which had been lost to Pakistani intruders.

The final figure will be as shown above.

It is a case of indirect proportion

More men, Less days

Number of days = (60 × 72)/(40 × 120/100) = 90 days

The logic followed here is:

54 : 135 → (27 × 2 = 54; 27 × 5 = 135)

32 : ? → (16 × 2 = 32; 16 × 5 = 80)

Hence, the answer is ‘80’.

Let the sum be ‘x’ and the rate be ‘r’
∴ According to the 1^st given condition,

 

According to the 2^nd given condition,

⇒ 40 = (x × 2 × r)

∴ xr = 20

Substituting in equation (1) we get,

⇒ 41 = 20 × (2 + r)

∴ r = 0.05

∴ The required rate is 5%

Ernest Rutherford and Niels Bohr discovered the structure of an atom.

Given, the number of males per hundred females in a country was 120.

Let the number of females be 100a, thus the number of males will be 120a.

Given, at the next census, the total population increased by 5% and the female population increased by 10%.

Let the % increase in the population be ‘b%’

∴ b% of 120a + 10% of 100a = 5% of 220a

⇒ 1.2b + 10 = 11

⇒ b = 1/1.2 = 5/6% = 0.8333%

Conclusions:

I. All dancers are artist → False (As, No singer is dancer and All artist are singer)

II. Some artists are not actors → False (As, Some actors are not singer and All artist are singer → It can be true but it is not definite)

III. Some actors are dancers is a possibility → True (As, Some actors are not singer and No singer is dancer → It can be true)

Hence, only conclusion III follows.

We know that,

Average Speed = Total distance/Total time

⇒ Average speed = 

⇒ x = 5 km/hr

Let 1 woman’s 1 day’s work = x

⇒ 1 man’s 1 day’s work = x/2 and 1 child’s 1 day’s work = x/4

⇒ (3x/2 + 4x + 6x/4) = 1/7

⇒ 28x/4 = 1/7

⇒ x = (1/7 × 4/28) = 1/49

⇒ 1 woman can complete the work in 49 days.

∴ To complete the work in 7 days, number of women required = (49/7) = 7

Given Expression: 14 ? 8 ? 16 ? 4 = 16

Let us check each option;

1) +, ÷ and –

14 + 8 ÷ 16 – 4 = 16

14 + 0.5 – 4 = 10.5

Hence, it is false.

2) ×, + and –

14 × 8 + 16 – 4 = 16

112 + 16 – 4 = 124

Hence, it is false.

3) ÷, + and ×

14 ÷ 8 + 16 × 4 = 16

1.75 + 64 = 65.75

Hence, it is false.

4) +, ÷ and ×

14 + 8 ÷ 16 × 4 = 16

14 + 0.5 × 4

14 + 2 = 16

Clearly, it is true.

Hence, +, ÷ and × will come in place of question mark.

The arrangement of leaves on a stem is known as phyllotaxy. Leaves can be classified as either alternate, spiral, opposite, or whorled. 

The Initial ratio is 4 : 6 : 9

Let the common ratio be ‘x’

Therefore the respective number of students in the 3 classes will be 4x , 6x and 9x

After addition of 12 students to each class,

The numbers will be 4x + 12 , 6x + 12, 9x + 12

The ratio after that will be 7 : 9 : 12

∴ (4x + 12)/(6x + 12) = 7/9

∴ 9 × (4x + 12) = 7 × (6x + 12)

∴ 36x + 108 = 42x + 84

∴ 6x = 24

∴ x = 4

∴ The initial number of students in the 2^nd class = 24

• Hypothalamus is a section of the brain which is responsible for hormone production.
• The hormones produced by this area of the brain governs body temperature, thirst, hunger, sleep and mood.

Modified gunmetalt is typically composed of 86% copper, 9.5% tin, 2.5% lead, and 2% zinc. Brass is an alloy of copper and zinc, while bronze is an alloy consisting mainly of copper, combined most often with tin.

• Second schedule lists the emoluments for holders of constitutional offices such as salaries of President, Vice President, Ministers, Judges and Comptroller and Auditor-General of India etc. 
• Representation in the RS is defined in the Fourth Schedule whereas Languages are defined in the Eighth Schedule.
• The aspects of oath taking have been taken care of in the Third Schedule of the Constitution. 

Answer: Option 4 is correct.

Solution: Since the seats in every department are filled without any vacancy it is known that the interest of every student varies and they tend to study various subjects. Also, the statement states that the students are involved in their academics very well, this shows the interest they have towards the subjects. Hence conclusion I follows, and II can also be concluded as it explains the reason for seats getting filled. We can determine that students really get to know the importance of education as the reason behind their involvement in academics is mentioned in the statement. It should be the importance and interest in education that drives the students towards their involvement.

• ALU stands for arithmetic logic unit and it carries out both arithmetic as well as logical operations in a computer system.
• It is a circuit which is a part of the central processing unit (CPU) of the computer.

Using Componendo and dividendo in the given equation

 

Now squaring both sides

⇒ 5 + x = 20 - 4x

⇒ x = 3

∴ The value of x is 3

As we know average = sum of all the observation/total number of observation

Average of (A, B) – Average of (B, C) = 45

⇒ (A + B)/2 - (B + C)/2 = 45

⇒ A + B - B - C = 45 × 2

⇒ A - C = 90

∴ Difference between A and C = 90

• World Bank brokered the Indus Waters Treaty between India and Pakistan.
• According to this agreement, control over the water flowing in three “eastern” rivers of India the Beas, the Ravi and the Sutlej was given to India, while control over the water flowing in three “western” rivers of India the Indus, the Chenab and the Jhelum was given to Pakistan.

• Bone is a type of dense connective tissue.
• Bones support and protect the various organs of the body, and provides structure and support for the body.
• Connective Tissues are used to bind and connect different tissues and organs.
• Skin is an example of an Epithelial tissue, Neurons is an example of a Nervous tissue and Rectum is an example of Muscular tissue.

Let the distance between the school and his house be ‘x’ km

Time taken on first day = Distance/speed = x/5 hrs.

His speed on next day = 5 + 4 = 9 km/hr.

Time taken on next day = x/9 hrs.

Now,

∵ He reached 3 min. late on the first day and reached 3 min. early the next day, this means that the difference between the time taken on the 2 days = 3 + 3 = 6 min. = 6/60 = 1/10 hrs.

⇒ x/5 – x/9 = 1/10

⇒ (9x – 5x)/45 = 1/10

⇒ 4x/45 = 1/10

⇒ x = 45/4 × 1/10

⇒ x = 1.125 km

∴ Distance between the school and his house is 1.125 km

Number of odd days in 2000 = 1 (As 1^st April comes after February)

Number of odd days from 2000 till 2001 = 1 + 1 = 2

Number of odd days from 2000 till 2002 = 2 + 1 = 3

Number of odd days from 2000 till 2003 = 3 + 1 = 4

Number of odd days from 2000 till 2004 = 4 + 2 = 6

Number of odd days from 2000 till 2005 = 6 + 1 = 7 = 0 odd days

Hence, Ram’s birthday on 3^rd April 2006 will be on Monday.

The Second Plan was particularly in the development of the public sector and "rapid Industrialisation". The plan followed the Mahalanobis model, an economic development model developed by the Indian statistician Prasanta Chandra Mahalanobis in 1953.

⇒ Let the length of the train be x metres

⇒ Then, the train covers x metres in 2 seconds and (x + 70) m in 11/2 seconds

⇒ (x + 70)/x = 5.5/2

⇒ x = 40

⇒ Speed = 40/2 m/sec = (20 × 18/5) km/hr = 72 km/hr