RRB-NTPC 2021 Mathematics

Practice subject-wise previous year questions

Question 1951

Arithmetic

The median of the observations 87, 56, 79, 81, 11, 53, 94, 45, 32, 99 and 98 is:

Question 1952

Arithmetic

The book "Gita Rahasya", a philosophical interpretation of the Bhagavad Gita, was written by which of the following leaders?

Aurobindo Ghosh

Bal Gangadhar Tilak

Mahatma Gandhi

Gopal Krishna Gokhale

Question 1953

Arithmetic

The Meissner effect is a defining characteristic of which state of matter?

Insulating state

Ferromagnetic state

Paramagnetic state

Superconducting state

Question 1954

Arithmetic

M, N, O, P, Y and Z live on six different floors of the same building. The lowermost floor in the building is numbered 1, the floor above it, number 2 and so on till the topmost floor is numbered 6. Only two people lives between N and Z. Only M lives above P. Y lives on an even numbered floor. N lives on the lowermost floor. How many people live between O and M?

Three

Four

One

Two

Question 1955

Arithmetic

What will come in the place of the question mark (?) in the following equation, if '+' and '-' are interchanged and 'x' and ‘÷’ are interchanged?  $51 ÷ 12 + 162 \times 3 - 104 =?$

662

642

672

652

Question 1956

Arithmetic

Which of the following films won the 2021 Golden Globe Award for Best Motion Picture - Non-English Language?

The Girl With The Needle

Emilia Pérez

All We Imagine as Light

I'm Still Here

Question 1957

Arithmetic

In December 2024, which day honoured Dr BR Ambedkar's contribution to social justice?

Mahaparinirvan Diwas

Constitution Awareness Day

Ambedkar Smriti Diwas

National Equality Day

Question 1958

Arithmetic

What should come in place of the question mark (?) in the given series?  601 600 597 592 585 ?

576

571

573

577

Question 1959

Arithmetic

Select the correct statement regarding the properties of diagonals of a rhombus.

The diagonals of a rhombus are equal, intersect at right angles and bisect each other.

The diagonals of a rhombus are not equal, intersect at right angles and bisect each other.

The diagonals of a rhombus are equal, do not intersect at right angles and bisect each other.

The diagonals of a rhombus are equal, intersect at right angles and do not bisect each other.

Question 1960

Arithmetic

The capacity of a cuboid tank of water is 70,000 litres. Find the breadth of the tank, if its length and depth are 4 m and 10 m, respectively.

1.75 m

1.85 m

1.95 m

1.65 m

Question 1961

Arithmetic

The Takht-i-Bahi inscription is associated with which region?

Gandhara

Kannauj

Gujarat

Agra

Question 1962

Arithmetic

Which Windows OS tool is used to change the system date and time?

Task Manager

Device Manager

Control Panel

File Explorer

Question 1963

Arithmetic

What provision was introduced by the Sixty-fifth Amendment Act of 1990 for the welfare of Scheduled Castes and Scheduled Tribes?

A multi-member National Commission

A ministry for tribal affairs

A new reservation policy

A single special officer

Question 1964

Arithmetic

In November 2024, the Indian government introduced the Broadcasting Services (Regulation) Bill, 2024. Which of the following is a key feature of this bill?

Exemption of OTT platforms from any regulatory oversight

Complete deregulation of satellite television channels

Abolishment of the Cable Television Networks (Regulation) Act, 1995, without replacement

Mandatory registration of digital news broadcasters and content creators

Question 1965

Arithmetic

Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster DOES NOT belong to that group? (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)

PXR

LTO

NVQ

HPK

Question 1966

Arithmetic

X, Y and Z invest a sum in the ratio 45: 37: 71 respectively. If they earned total profit of ₹2,790 at the end of year, then what is the difference between the share of Y and Z?

₹599

₹620

₹644

₹728

Question 1967

Arithmetic

Which Indian city is most influenced by retreating monsoon rainfall?

Mumbai

Chennai

Bhopal

Jaipur

Question 1968

Arithmetic

Select the set in which the numbers are related in the same way as are the numbers of the following sets. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 - Operations on 13 such as adding/subtracting/multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) (43, 48, 5) (49, 70, 21)

(36, 52, 13)

(45, 52, 4)

(20, 34, 14)

(48, 71, 20)

Question 1969

Arithmetic

What should come in place of the question mark (?) in the given series? 49 55 63 73 85 99 ?

129

115

120

111

Question 1970

Arithmetic

What will be the difference in population 3 years ago and 2 years ago of a town whose current population of 1,60,000 is increasing at a rate of 25% every year?

20,830

20,480

19,930

19,730

Question 1971

Arithmetic

What happens if a municipality in India is dissolved before completing its full term?

The previous municipal council is reinstated.

The central government takes over governance.

The municipality ceases to exist.

A new election must be held within 6 months.

Question 1972

Arithmetic

Which industry is closely associated with 'cluster development' and the second-largest sector in terms of job creation in India after agriculture?

Automobile

Textile and apparel

Pharmaceuticals

Steel

Question 1973

Arithmetic

Which DRDO lab conducted a successful laser weapon test in April 2021?

ADE (Aeronautical Development Establishment)

CAIR (Centre for Artificial Intelligence & Robotics)

CHESS (Centre for High Energy Systems and Sciences)

NPOL (Naval Physical & Oceanographic Laboratory)

Question 1974

Arithmetic

Where are the elements such as neptunium and plutonium found?

Pitchblende

Coal

Seawater

Granite

Question 1975

Arithmetic

The marked price of a bed is ₹744, which is 31% above the cost price. If the profit percentage is 9%. Find the discount percentage. (rounded off to two decimal places)

15.52%

18.65%

14.59%

16.79%

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122

The median of the observations 87, 56, 79, 81, 11, 53, 94, 45, 32, 99 and 98 is:

The book "Gita Rahasya", a philosophical interpretation of the Bhagavad Gita, was written by which of the following leaders?

The Meissner effect is a defining characteristic of which state of matter?

What will come in the place of the question mark (?) in the following equation, if '+' and '-' are interchanged and 'x' and ‘÷’ are interchanged?&nbsp; $51 ÷ 12 + 162 \times 3 - 104 =?$

Which of the following films won the 2021 Golden Globe Award for Best Motion Picture - Non-English Language?

In December 2024, which day honoured Dr BR Ambedkar's contribution to social justice?

What should come in place of the question mark (?) in the given series?&nbsp; 601 600 597 592 585 ?

Select the correct statement regarding the properties of diagonals of a rhombus.

The capacity of a cuboid tank of water is 70,000 litres. Find the breadth of the tank, if its length and depth are 4 m and 10 m, respectively.

The Takht-i-Bahi inscription is associated with which region?

Which Windows OS tool is used to change the system date and time?

What provision was introduced by the Sixty-fifth Amendment Act of 1990 for the welfare of Scheduled Castes and Scheduled Tribes?

In November 2024, the Indian government introduced the Broadcasting Services (Regulation) Bill, 2024. Which of the following is a key feature of this bill?

Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster DOES NOT belong to that group? (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)

X, Y and Z invest a sum in the ratio 45: 37: 71 respectively. If they earned total profit of ₹2,790 at the end of year, then what is the difference between the share of Y and Z?

Which Indian city is most influenced by retreating monsoon rainfall?

What should come in place of the question mark (?) in the given series? 49 55 63 73 85 99 ?

What will be the difference in population 3 years ago and 2 years ago of a town whose current population of 1,60,000 is increasing at a rate of 25% every year?

What happens if a municipality in India is dissolved before completing its full term?

Which industry is closely associated with 'cluster development' and the second-largest sector in terms of job creation in India after agriculture?

Which DRDO lab conducted a successful laser weapon test in April 2021?

Where are the elements such as neptunium and plutonium found?

The marked price of a bed is ₹744, which is 31% above the cost price. If the profit percentage is 9%. Find the discount percentage. (rounded off to two decimal places)

What will come in the place of the question mark (?) in the following equation, if '+' and '-' are interchanged and 'x' and ‘÷’ are interchanged? $51 ÷ 12 + 162 \times 3 - 104 =?$

What should come in place of the question mark (?) in the given series? 601 600 597 592 585 ?