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RRB NTPC Mock Test - 20 (English) - RRB NTPC/ASM/CA/TA MCQ


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120 Questions MCQ Test RRB NTPC Mock Test Series 2025 - RRB NTPC Mock Test - 20 (English)

RRB NTPC Mock Test - 20 (English) for RRB NTPC/ASM/CA/TA 2024 is part of RRB NTPC Mock Test Series 2025 preparation. The RRB NTPC Mock Test - 20 (English) questions and answers have been prepared according to the RRB NTPC/ASM/CA/TA exam syllabus.The RRB NTPC Mock Test - 20 (English) MCQs are made for RRB NTPC/ASM/CA/TA 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for RRB NTPC Mock Test - 20 (English) below.
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RRB NTPC Mock Test - 20 (English) - Question 1

A trapezium based prism with two parallel sides 8 cm and 14 cm respectively and distance between two parallel sides is 8 cm. Find the height of the prism if the volume of the prism is 1056 ?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 1

Volume of prism = (Base area) × height.

Base Area = Area of trapezium
= 1/2(8 + 14) × 8 = 88
∴ 1056 = 88 × height

RRB NTPC Mock Test - 20 (English) - Question 2

The base of a right prism is an equilateral triangle. If its height is one-fourth and each side of the base is tripled, then the ratio of the volumes of the old to the new prism is

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 2

RRB NTPC Mock Test - 20 (English) - Question 3

The maximum value of 24 sin θ + 7 cos θ is?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 3

y = 24 sin x + 7 cos x

dy/dx = 24 cos x - 7 sin x = 0

7 sin x = 24 cos x, or

sin x / cos x = 24/7

tan x = 24/7

Or sin x = 24/(24^2+7*2)^0.5 = 24/(576+49)^0.5 = 24/25 and cos = 7/25.

Thus the max value of y = 24*24/25 + 7*7/25

= (576+49)/25

= 625/25

= 25. Answer.

RRB NTPC Mock Test - 20 (English) - Question 4

 Find the maximum value of :

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 4

RRB NTPC Mock Test - 20 (English) - Question 5

A sum of money triples itself in 15 years 6 months. In how many years would it double itself?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 5

RRB NTPC Mock Test - 20 (English) - Question 6

A lent Rs. 5000 to B for 2 years and Rs. 3000 to C for 4 years on simple interest at the same rate of interest and received Rs. 2200 in all from both of them as interest. The rate of interest per annum is:  

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 6

RRB NTPC Mock Test - 20 (English) - Question 7

A money lender finds that due to a fall in the annual rate of interest from 8% to 73/4%, his yearly income has diminished by Rs 61.50. What is his capital amount?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 7

Let Capital invested is X

X(8%-7.75%)= 61.50

X = 61.50/.0025= Rs. 24,600/-

Income when interest rate is 8%

24600* 8%= 1968

Interest when interest reduced to 7.75%

24600 * 7.75% = 1906.5

Difference Amount Rs. 61.5

Therefore Capital Amount is Rs. 24,600/-

RRB NTPC Mock Test - 20 (English) - Question 8

A train X starts from Meerut at 4 p.m. and reaches Ghaziabad at 5 p.m. while another train Y starts from Ghaziabad at 4 p.m. and reaches Meerut at 5.30 p.m. The two trains will cross each other at:

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 8

Suppose, the distance between Meerut and Ghaziabad is x km.
Time taken by X to cover x km = 1 hour.

RRB NTPC Mock Test - 20 (English) - Question 9

Two goods train each 500 m long, are running in opposite directions on parallel tracks. Their speeds are 45 km/hr and 30 km/hr respectively. Find the time taken by the slower train to pass the driver of the faster one.

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 9

RRB NTPC Mock Test - 20 (English) - Question 10

A train moves past a telegraph post and a bridge 264 m long in 8 seconds and 20 seconds respectively. What is the speed of the train?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 10

Let the length of the train be x metres and its speed by y m/sec.

RRB NTPC Mock Test - 20 (English) - Question 11

At what price should a shopkeeper mark a radio that costs him Rs. 1200 in order that he may offer a discount of 20% on the marked price and still make a profit of 25%?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 11

RRB NTPC Mock Test - 20 (English) - Question 12

Two shopkeepers announce the same price of Rs. 700 for a sewing machine. The first offers successive discounts of 30% and 6% while the second offers successive discounts of 20% and 16%. The shopkeeper that offers better discount, charges ………… less than the other shopkeeper.

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 12

RRB NTPC Mock Test - 20 (English) - Question 13

In a triangle ABC, the lengths of the sides AB and AC equal 17.5 cm and 9 cm respectively. Let D be a point on the segment BC such that AD is perpendicular to BC. If AD = 3 cm, then what is the radius (in cm) of the circle circumscribing the triangle ABC?  

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 13


RRB NTPC Mock Test - 20 (English) - Question 14

Which of the following can’t be the ratio of the sides of a triangle.  

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 14

We know that sum of the two side are always greater than third side.
Now, if we consider option (b)
The ratio of the sides of a triangle , 1 : 3 : 6 side of a triangle x, 3x, & 6x but here x + 3x < 6x
So, 1 : 3 : 6 can’t be the ratio of side of a triangle. 

RRB NTPC Mock Test - 20 (English) - Question 15

The marked price of an article is 20% more than its cost price. A discount of 20% is given on the marked price. In this kind of sale, the seller bears

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 15

% gain or loss = 20-20+(20 (-20))/100 = 4% loss

RRB NTPC Mock Test - 20 (English) - Question 16

A shopkeeper fixed a price of an article 25% more of its cost price and then allowed 10% discount. The actual profit percent is

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 16

Profit percent = 25-10+(25 (-10))/100 = 12.5%

RRB NTPC Mock Test - 20 (English) - Question 17

After allowing a discount of 16%, there was still a gain of 5%. Then the percentage of marked price over the cost price is 

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 17

If C.P. is Rs. 100 then S.P. = Rs.105 So, marked price 84/100 = 105 So, marked price = (105*100)/84 =125 So, marked price is 25% over the cost price

RRB NTPC Mock Test - 20 (English) - Question 18

A man invests half of his capital at the rate of 10% per annum, one-third at 9% and the rest at 12% per annum. The average rate of interest per annum,  which he gets is :

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 18

RRB NTPC Mock Test - 20 (English) - Question 19

Rs. 800 becomes Rs. 956 in 3 years at a certain rate of simple interest. If the rate of interest is increased by 4%, what amount will Rs. 800 become in 3 years ?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 19

RRB NTPC Mock Test - 20 (English) - Question 20

A contractor undertakes to build a wall in 40 days. He employs 50 people for the same. However, after 20 days he finds that only 40% of the work is completed. How many more man need to be employed to complete the work in time?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 20

According to the given information, 50 men completed 0.4 work in 20 days and (M + 50) men should complete the remaining 1 – 0.4 = 0.6 work in remaining time i.e. 40 – 20 = 20 

RRB NTPC Mock Test - 20 (English) - Question 21

Anita and Bindu can finish a work in 10 days while Bindu and Chitra can do it in 18 days. Anita started the work, worked for 5 days, then Bindu worked for 10 days and the remaining work was finished by Chitra in 15 days. In how many days could Chitra alone have finished the whole work?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 21

Let Chitra alone can finish a work in Days. !lso !’s 5 days work + B’s 10 days work + C’s 15 days’ work equals the total work.
⇒ (! + B)’s 5 days work + (B + C)

RRB NTPC Mock Test - 20 (English) - Question 22

A man is twice as fast as a woman. Together the man and the woman do the piece of work in 60 days. In how many days each will do the work if engaged alone?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 22

Let one women is one unit then man will be 2 units and 3 units finished the work in 60 days hence one units will finish the work in 180 days therefore woman will take 180 days and man will take 90 days being twice efficient as compared to woman.

RRB NTPC Mock Test - 20 (English) - Question 23

The cost price of 10 articles is equal to the selling price of 9 articles. Find the profit percent.

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 23

RRB NTPC Mock Test - 20 (English) - Question 24

If a man estimates his loss as 20% of the selling price, then his loss percent is 

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 24

RRB NTPC Mock Test - 20 (English) - Question 25

A dishonest milkman sells milk at cost price but he mixes water and earns 16 % profit. Find the ratio of mixture to milk in the mixture?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 25

Let C.P. of 1 litre milk = 10/-
bought milk = x litre then C.P. = 10x
Let water mixed in milk = y litre
then quality = (x + y) litre
Mixture is sold on C.P.
then S.P. = 10 (x + y)
= 10x + 10y
profit = S.P. – C.P. = (10x + 10y) – (10x)= 10y

RRB NTPC Mock Test - 20 (English) - Question 26

What is the LCM of (6x3 + 60x2 + 150x) and (3x4 + 12x3 – 15x2)?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 26

RRB NTPC Mock Test - 20 (English) - Question 27

If HCF of (x2 + x – 12) and (2x2 – kx – 9) is (x – k), then value of k is

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 27

∵ x – k is a factor of 2x2 – kx – 9
∴ 2k2 – k2 – 9 = 0
∴ k = ± 3
But factor of (x2 +x - 12) are (x+4),(x-3) Hence value of k is 3.

RRB NTPC Mock Test - 20 (English) - Question 28

If (3x3 – 2x2y – 13xy2 + 10y3) is divided by (x – 2y), then what is the remainder?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 28

Required remainder = 3(2y)3 – 2 (2y)2 y – 13 (2y) y2 + 10y3 (using factor theorem) = 24y3 – 8y3 – 26y3 + 10y3 = 34y3 – 34y3 = 0

RRB NTPC Mock Test - 20 (English) - Question 29

Two numbers are such that the sum of twice the first number and thrice the second number is 36 and sum of thrice the first number and twice the second number is 39. Which is the smaller number?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 29

Let the numbers be x and y
2x + 3y = 36
3x + 2y = 39
4x + 6y = 72

RRB NTPC Mock Test - 20 (English) - Question 30

If the sum and difference of two numbers are 20 and 8 respectively, then the difference of their square is:

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 30

RRB NTPC Mock Test - 20 (English) - Question 31

A 4-digit number is formed by repeating a 2-digit number such as 2525, 3232, etc. Any number of this form is always exactly divisible by:

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 31

By 101 which is the smallest 3-digit prime number.

RRB NTPC Mock Test - 20 (English) - Question 32

A number divided by 68 gives the quotient 269 and remainder zero. If the same number is divided by 67, then the remainder is:

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 32

The number is 68 × 269 = 18292. 18292, when divided by 67, leaves a remainder of 1. 

RRB NTPC Mock Test - 20 (English) - Question 33

What is the mode of the following numbers? 1, 2, 4, 6, 4, 3, 5, 4

RRB NTPC Mock Test - 20 (English) - Question 34

Find the median of the following data. 27, 39, 49, 20, 21, 28, 38

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 34

Series =20, 21,27,28, 38,39,49
Total number in the series=7 Median=7+1/2=4th number=28

RRB NTPC Mock Test - 20 (English) - Question 35

The Indus Valley Civilization was:

RRB NTPC Mock Test - 20 (English) - Question 36

Bronze statue of dancing girl has been excavated at:

RRB NTPC Mock Test - 20 (English) - Question 37

The most common form of Harappan seal is:

RRB NTPC Mock Test - 20 (English) - Question 38

A proclamation of emergency must be placed before the Parliament for its approval 

RRB NTPC Mock Test - 20 (English) - Question 39

The permanent president of Constituent Assembly was

RRB NTPC Mock Test - 20 (English) - Question 40

Which one of the following rights has been described by Dr. !mbedkar as ‘The heart and soul of the Constitution’?

RRB NTPC Mock Test - 20 (English) - Question 41

Which of the following is not provided for by the Constitution of India?

RRB NTPC Mock Test - 20 (English) - Question 42

Which one of the following is the largest committee of the Parliament?

RRB NTPC Mock Test - 20 (English) - Question 43

The Speaker of the Lok Sabha can resign his office by addressing his resignation to

RRB NTPC Mock Test - 20 (English) - Question 44

Which of the following is definitely a major indication of the state of the economy of a country?

RRB NTPC Mock Test - 20 (English) - Question 45

In which year ‘Bombay plan’ was launched by some industrialists?

RRB NTPC Mock Test - 20 (English) - Question 46

Which sector is the backbone of Indian economy?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 46

India is an agrarian area. Fundamentally, the Indian economy is agrarian. Agriculture is the core of the Indian economy, given rapid growth and industrialisation. As Mahatma Gandhi claimed, "India exists in villages and the soul of the Indian economy is agriculture"

Agriculture is the backbone of the Indian economy, as 75% of the population of India depends on agriculture. It has now become apparent that India's economic growth does not live up to expectations, as agricultural growth lags behind.

RRB NTPC Mock Test - 20 (English) - Question 47

Disguised unemployment in India exists in

RRB NTPC Mock Test - 20 (English) - Question 48

In which form of the market structure is the degree of control over the price of its product by a firm very large?

RRB NTPC Mock Test - 20 (English) - Question 49

Which among the following statements with regard to Raja Rammohan Roy are correct?

1. He started the Atmiya Sabha
2. He wrote the Gift of Monotheist
3. He published the Precepts of Jesus
4. He founded the Brahma Sabha

Select the correct answer from the codes given below:

Codes:

RRB NTPC Mock Test - 20 (English) - Question 50

The person who returned his token of honour to Government of India on May 30, 1919 was

RRB NTPC Mock Test - 20 (English) - Question 51

The Muslim League demanded separate Pakistan for the first time in the year

RRB NTPC Mock Test - 20 (English) - Question 52

Which music instrument belongs to Hari Prasad Chaurasia?

RRB NTPC Mock Test - 20 (English) - Question 53

 The image of Nataraja (the lord of dance) is a superb masterpiece of the period of

RRB NTPC Mock Test - 20 (English) - Question 54

Chakan Gaan-Ngai, a post-harvest festival is celebrated in ___________.

RRB NTPC Mock Test - 20 (English) - Question 55

 Jnanpith Award is given for which field?

RRB NTPC Mock Test - 20 (English) - Question 56

Sports coaches receive which of the following awards?

RRB NTPC Mock Test - 20 (English) - Question 57

Under which article of Indian Constitution, a High Court can issue writs to protect the fundamental rights?

RRB NTPC Mock Test - 20 (English) - Question 58

Which provision relating to the fundamental rights is directly related to the exploitation of children?

RRB NTPC Mock Test - 20 (English) - Question 59

The article of Indian Constitution related to abolition of untouchability is

RRB NTPC Mock Test - 20 (English) - Question 60

Which state gives the Nandi Award?

RRB NTPC Mock Test - 20 (English) - Question 61

The ‘Cannes !ward’ is given for excellence in which field?

RRB NTPC Mock Test - 20 (English) - Question 62

FiFi awards are given in_____industry:

RRB NTPC Mock Test - 20 (English) - Question 63

Booker prize is given to the field of :

RRB NTPC Mock Test - 20 (English) - Question 64

The Constitution of India does not contain any provision for the impeachment of

RRB NTPC Mock Test - 20 (English) - Question 65

 The book ‘Mudrarakshas’ is written by

RRB NTPC Mock Test - 20 (English) - Question 66

‘The Rights of Man’ is written by

RRB NTPC Mock Test - 20 (English) - Question 67

Which one of the following is not a method of measurement of National Income?  

RRB NTPC Mock Test - 20 (English) - Question 68

Labour intensive technique would get choosen in a  

RRB NTPC Mock Test - 20 (English) - Question 69

Who said, “Economics is the Science of Wealth”?

RRB NTPC Mock Test - 20 (English) - Question 70

Supply creates its own demand. This statement is related to

RRB NTPC Mock Test - 20 (English) - Question 71

How many bones are present in face?

RRB NTPC Mock Test - 20 (English) - Question 72

Which gland helps in changing our emotions?

RRB NTPC Mock Test - 20 (English) - Question 73

Coconut and mango grouped under which kind of fruit?

RRB NTPC Mock Test - 20 (English) - Question 74

Double fertilization is main feature of—

RRB NTPC Mock Test - 20 (English) - Question 75

Which of the following gland disappear during old age?

RRB NTPC Mock Test - 20 (English) - Question 76

Which of the following is called tear gland?

RRB NTPC Mock Test - 20 (English) - Question 77

Methanol and acetone can be separated by—

RRB NTPC Mock Test - 20 (English) - Question 78

Estimation of age of woody plant by counting annual ring is—

RRB NTPC Mock Test - 20 (English) - Question 79

A mixture of benzene and toluene forms—

RRB NTPC Mock Test - 20 (English) - Question 80

The aqueous solution of which acids is called Vinegar ?

RRB NTPC Mock Test - 20 (English) - Question 81

Why is phosphorus kept under water ?

RRB NTPC Mock Test - 20 (English) - Question 82

Medicines are more effective, if they are used in—

RRB NTPC Mock Test - 20 (English) - Question 83

Cooking oil can be converted into vegetable ghee by the process of  

RRB NTPC Mock Test - 20 (English) - Question 84

Force of attraction between the molecules of different substances is called

RRB NTPC Mock Test - 20 (English) - Question 85

Stars which appear single to the naked eye but are double when seen through a telescope are

RRB NTPC Mock Test - 20 (English) - Question 86

Which of the following is an electromagnetic wave?

RRB NTPC Mock Test - 20 (English) - Question 87

Which of the following show photoelectric effect?

RRB NTPC Mock Test - 20 (English) - Question 88

Which of the following instrument is used to measure the strength of winds

RRB NTPC Mock Test - 20 (English) - Question 89

Sound wave cannot pass through above which of the following?

RRB NTPC Mock Test - 20 (English) - Question 90

A plane mirror reflects a beam of light to form a real image. The incident beam is

RRB NTPC Mock Test - 20 (English) - Question 91

The coast that belongs to Kerala is known as  

RRB NTPC Mock Test - 20 (English) - Question 92

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 92

We have : (101 + 15) – (35 + 43) = 38.
So, missing number = (48 + 184) – (56 + 34) = (232 – 90) = 142. 

RRB NTPC Mock Test - 20 (English) - Question 93

Read the following information carefully and answer the questions given below it:

(i) A, B, C, D and E are five friends.
(ii) B is elder to E, but not as tall as C.
(iii) C is younger to A, and is taller to D and E.
(iv) A is taller to D, but younger than E.
(v) D is elder to A but is shortest in the group.

Q. Who among the following is the eldest?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 93

In terms of age, we have : E < B, C < A, A < E, A < D. So we have : C < A < E < B, A < D.
In terms of height, we have : B < C, D < C, E< C, D < A.

RRB NTPC Mock Test - 20 (English) - Question 94

(i) A, B, C, D and E are five friends.
(ii) B is elder to E, but not as tall as C.
(iii) C is younger to A, and is taller to D and E.
(iv) A is taller to D, but younger than E.
(v) D is elder to A but is shortest in the group. 

Q. Which of the following pairs of students is elder to D?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 94

In terms of age, we have : E < B, C < A, A < E, A < D. So we have : C < A < E < B, A < D.
In terms of height, we have : B < C, D < C, E< C, D < A.

It cannot be determined for sure.

RRB NTPC Mock Test - 20 (English) - Question 95

A man is facing West and turns 45° clockwise, again 180° clockwise and then turns 270° anticlockwise. Which direction is he facing now?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 95

As shown in figure, the man initially faces in the directions OA. On moving clockwise, the  man faces in the direction OB. On further moving clockwise, he faces in the direction OC. Finally, on moving anti-clockwise, he faces in the direction OD, which is South-west. 

RRB NTPC Mock Test - 20 (English) - Question 96

Choose the odd numeral group?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 96

In All other groups, the numbers are in the ratio 1 : 2 : 4 : 3. 

RRB NTPC Mock Test - 20 (English) - Question 97

What is the product of all the numbers in the dial of a telephone?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 97

Since one of the numbers on the dial of a telephone is zero, so the product of all the numbers on  it is 0.

RRB NTPC Mock Test - 20 (English) - Question 98

In a certain code language ‘123’ means ‘hot filtered coffee,’‘356’ means ‘very hot day’ and ‘589’ means ‘day and night’. Which digit stands for ‘very’?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 98

In the first and the second statements, the common code digit is ‘3’ and the common word is ‘hot’. So, ‘3’ means ‘hot’.
In the second and third statements, the common code digit is ‘5’ and the common word is ‘day’. So, ‘5’ means ‘day’.
Thus, in the second statement ‘6’ means ‘very’ 

RRB NTPC Mock Test - 20 (English) - Question 99

Which of the following will complete the series?

2Z5, 7Y7, 14X9, 23W11, 34V13, ?

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 99

RRB NTPC Mock Test - 20 (English) - Question 100

In this question, arrange the given words in a meaningful sequence and then choose the most appropriate sequence from amongst the alternatives?

1. Puberty
2. Adulthood
3. Childhood
4. Infancy
5. Senescence
6. Adolescence 

RRB NTPC Mock Test - 20 (English) - Question 101

In this questions, one term in the number series is wrong. Find out the wrong term.

3, 7, 15, 39, 63, 127, 255, 511

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 101

The correct pattern is × 2 + 1.
So, 39 is wrong and must be replaced by (15 × 2 + 1) i.e. 31.

RRB NTPC Mock Test - 20 (English) - Question 102

In the following list of numerals, how many 2s are there each of which is followed by 1 but not preceded by 4?

4 2 1 2 1 4 2 1 1 2 4 4 4 1 2 2 1 2 1 4 4 2 1 4 2 1 2 1 2 4 1 4 2 1 2 4 1 4 6

Detailed Solution for RRB NTPC Mock Test - 20 (English) - Question 102