RRB-NTPC 2021 Mathematics

Practice subject-wise previous year questions

Question 1901
Arithmetic

Some marbles are to be packed in four boxes, A, B, C and D, in the proportion of 6: 3: 7 : 5. If box B has 400 less marbles than box D, then how many marbles are there in total in all the boxes?

A
4000
B
4100
C
4200
D
3900
Question 1902
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 M lives above N.Z lives immediately below N. Only P lives below O. Who lives on floor numbered 3?

A
Z
B
Y
C
M
D
O
Question 1903
Arithmetic

Based on the English alphabetical order, three of the following letter-cluster pairs are alike in a certain way and thus form a group. Which pair does NOT belong to that group?

A
ACE – BDF
B
RTV – SUW
C
MOQ – NPR
D
GIK – HJL  
Question 1904
Arithmetic

AB is parallel to CD. A transversal PQ intersects AB and CD at E and F, respectively, and $\angle$PEB = 49°. G is a point between AB and CD such that $\angle$BEG = 35° and $\angle$GFE = 16°. What is the measure of $\angle$EGF?

A
57°
B
60°
C
59°
D
68°
Question 1905
Arithmetic

Which event marked the final collapse of the British policy of annexation?

A
Quit India Movement
B
Revolt of 1857
C
Government of India Act, 1935
D
Partition of Bengal
Question 1906
Arithmetic

Two poles of height 12 m and 20 m are fixed to a level ground. The distance between the bottom of the poles is 15 m. What is the distance (in m) between their tops?

A
17
B
20
C
25
D
16
Question 1907
Arithmetic

In the following triads, each group of letters is related to the subsequent one following a certain logic. Select from the given options, the one that follows the same logic.  BEAN - EBAN - BANE  MAKE - AMKE - MKEA

A
RACE - RCAE - ECAR
B
MACK - AMCK - MCKA
C
WORK - OWRK - KORW
D
NEAR - ENAR - EARN
Question 1908
Arithmetic

Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair 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)

A
QR - WX
B
LM - RS
C
ST - YZ
D
GH - OM
Question 1909
Arithmetic

What was the Gross Enrollment Ratio (GER) in higher education in India according to the All India Survey on Higher Education, 2021-22?

A
30.80%
B
26.60%
C
28.40%
D
24.20%
Question 1910
Arithmetic

The Great Plateau of India is a part of which ancient landmass?

A
Pangaea
B
Gondwana Land
C
Laurasia
D
Angaraland
Question 1911
Arithmetic

What should come in place of the question mark (?) in the given series based on the English alphabetical order? DKR HOV LSZ PWD ?

A
HAT
B
HTA
C
TAH
D
THA
Question 1912
Arithmetic

In Gond painting, what is the purpose of applying 'chhui' clay on the surface?

A
To create a smooth white base for painting
B
To fix cracks on the wall
C
To prevent insects from damaging the wall
D
To reflect sunlight
Question 1913
Arithmetic

Arrange the following states in descending order based on the number of seats won by the Bharatiya Janata Party (BJP) in their respective 2024-2021 assembly elections.  1. Delhi  2. Maharashtra  3. Jammu and Kashmir  4. Jharkhand

A
1>2>3>4
B
3>2>1>4
C
2>1>3>4
D
2>3>1>4
Question 1914
Arithmetic

If the quadratic equations $4x^2 + bx + 3 = 0$ and $8x^2 + 4x + c = 0$ have both the roots common, find the values for b and c, respectively.

A
6, 2
B
2, 6
C
4, 2
D
2, 4
Question 1915
Arithmetic

Which agreement is linked to the Citizenship (Amendment) Act, 1985?

A
Shimla Agreement
B
Assam Accord
C
Indo-Sri Lanka Pact
D
Kashmir Agreement
Question 1916
Arithmetic

The arithmetic mean of the observations 78, 56, 52, 45, 97, 19, 37, 46 and 74 is:

A
56
B
64
C
61
D
48
Question 1917
Arithmetic

The Chalukyas of Badami were founded by:

A
Pulakesin I
B
Vikramaditya I
C
Kirttivarman I
D
Mangalesha
Question 1918
Arithmetic

Which of the following measures the percentage of a country's population living below the poverty line?

A
Unemployment Rate
B
Human Development Index
C
Gini Coefficient
D
Poverty Headcount Ratio
Question 1919
Arithmetic

GN 14 is related to ER 1 in a certain way. In the same way, HP 18 is related to FT 5. To which of the given options is TK 4 related, following the same logic?

A
PW -7
B
KJ -13
C
RO -9
D
TY -11
Question 1920
Arithmetic

The shorter side of a rectangle is 16 cm less than the longer side. The numerical value of its area is equal to 3 times the numerical value of its perimeter. What is the length (in cm) of its longer side?

A
14
B
25
C
19
D
24
Question 1921
Arithmetic

In Warli painting, which natural material is used in the first step called 'Lipane' to prepare the wall?

A
Rice paste
B
Sand
C
Geru
D
Charcoal
Question 1922
Arithmetic

The Supreme Court described itself as the "sentinel on the qui vive" in relation to

A
Protection of Fundamental Rights
B
Protection of tax laws
C
Protection of foreign policy
D
Protection of legislative privileges
Question 1923
Arithmetic

Which of the following methods is the quickest way to open an existing MS Excel spreadsheet?

A
Use the Alt + F4 shortcut
B
Double-click the .xlsx file in File Explorer
C
Press Ctrl + N
D
Open MS Excel and click Blank Workbook
Question 1924
Arithmetic

Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only. All numbers are single-digit numbers only.  (Left) 9 # 1 * £ 5 2 & % $ 7 & 3 Ω 4 6 @ 8 (Right)  How many such symbols are there each of which is immediately preceded by a number and also immediately followed by another symbol?

A
Three
B
Four
C
Two
D
One
Question 1925
Arithmetic

A certain number is divided into two parts such that 5 times the first part added to 14 times the second part makes 7 times the whole. The ratio of the second part to the first part is:

A
1:7
B
2:7
C
7:1
D
7:2