RRB-NTPC 2021 Mathematics
Practice subject-wise previous year questions
Question 2501
Arithmetic
The Thar Desert serves as a natural boundary between:
A
India and ChinaB
India and PakistanC
India and NepalD
India and AfghanistanQuestion 2502
Arithmetic
Which of the following systems was abolished by the Nineteenth Amendment Act, 1966?
A
Election tribunalsB
Zamindari systemC
Privy purse systemD
Separate electorate systemQuestion 2503
Arithmetic
Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only. (NOTE: All numbers are single digit numbers only.) (Left) 8 9 # 1 9 © 3 5 © € @ # £ @ * © 5 £ € 5 4 4 (Right) How many such numbers are there each of which is immediately preceded by a number and also immediately followed by a symbol?
A
3B
4C
5D
2Question 2504
Arithmetic
The 1991 reforms promoted deregulation of industries. Which industry continued to be reserved for public sector post-1991 reforms?
A
ElectronicsB
AutomobilesC
Atomic energyD
TextileQuestion 2505
Arithmetic
Which of the following best describes the function of a 'Section Break (Next Page)' in MS Word?
A
It starts a new paragraph while maintaining the same formatting.B
It ends the current section and starts a new section on the subsequent page.C
It inserts a manual line break within the same paragraph.D
It creates a visual divider between different parts of the document on the same page.Question 2506
Arithmetic
The period from 1905 to 1917 is known as the "Extremist Phase" in the Indian National Movement. Which of the following leaders was NOT associated with the extremist ideology during this time?
A
Bipin Chandra PalB
Bal Gangadhar TilakC
Lala Lajpat RaiD
Gopal Krishna GokhaleQuestion 2507
Arithmetic
Seven friends, D, E, F, G, M, N and O, are sitting in a row facing north. Only five people sit between G and D. F sits to the immediate left of D. Only one person sits between F and M. O sits at some place to the left of E but at some place to the right of N. Who sits third from the left end of the line?
A
FB
MC
ND
OQuestion 2508
Arithmetic
Which metals are generally used for electrical transmission lines?
A
Iron and nickelB
Silver and goldC
Zinc and leadD
Copper and aluminiumQuestion 2509
Arithmetic
A man spends 28% of his monthly salary on house rent. If every month, he also spends ₹687 on conveyance and ₹7,483 on grocery and saves the remaining ₹218, his monthly salary is:
A
₹11,738B
₹11,650C
₹11,594D
₹11,743Question 2510
Arithmetic
Find the area of four walls of a cube, the length of whose edge is $(3x + 8y + 5)$ m.
A
$(36x^2 + 124y^2 + 100 + 82xy + 160y + 80x)$ m$^2$B
$(36x^2 + 256y^2 + 100 + 192xy + 160y + 120x)$ m$^2$C
$(36x^2 + 256y^2 + 100 + 192xy + 320y + 120x)$ m$^2$D
$(36x^2 + 184y^2 + 100 + 192xy + 160y + 80x)$ m$^2$Question 2511
Arithmetic
The maximum number of Buddhist stupas had been built by which of the following rulers?
A
Chandragupta MauryaB
BimbisaraC
AshokaD
Pushyamitra SungaQuestion 2512
Arithmetic
What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged? 215 ÷ 4 + 822 × 3 − 45 = ?
A
691B
631C
521D
581Question 2513
Arithmetic
Which of the following categories of MSMEs constitutes the major share of MSME registration on the Udyam Registration Portal?
A
MicroB
SmallC
LargeD
MediumQuestion 2514
Arithmetic
What is the significance of pipelining in CPU architecture?
A
Stores instructions in memoryB
Transfers data between registersC
Increases clock speed using multiple coresD
Executes multiple instructions simultaneously by overlapping stagesQuestion 2515
Arithmetic
What should come in place of the question mark (?) in the given series? 21 24 33 48 69 96 ?
A
116B
138C
141D
129Question 2516
Arithmetic
Select the triad that follows the same pattern as that followed by the two triads given below. Both triads follow the same pattern. QT-OR-MP XA-VY-TW
A
JM-HK-FJB
AD-YB-VZC
TW-RU-PSD
NQ-LO-JNQuestion 2517
Arithmetic
Where was the field demonstration of the DEW Mk-II(A) system conducted by DRDO in 2021?
A
BengaluruB
New DelhiC
KurnoolD
PokhranQuestion 2518
Arithmetic
Chetan starts from Point Y and drives 37 km towards the south. He then takes a right turn, drives 18 km, turns right and drives 58 km. He then takes a left turn and drives 61 km. He takes a left turn, drives 21 km and stops at Point Z. How far (shortest distance) and towards which direction should he drive in order to reach Point Y again? (All turns are 90-degree turns only unless specified.)
A
39 km towards the southB
64 km towards the westC
43 km towards the westD
79 km towards the eastQuestion 2519
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.)
A
KNIB
MPKC
QTPD
ORMQuestion 2520
Arithmetic
Which Indian Constitutional Amendment Act have decreased the Fundamental Rights from seven to six?
A
35th Constitutional Amendment ActB
76th Constitutional Amendment ActC
44th Constitutional Amendment ActD
42nd Constitutional Amendment ActQuestion 2521
Arithmetic
Suzanne Collins' novel published in 2021 is titled:
A
The Crimson RiversB
Sunrise on the ReapingC
Léon: The ProfessionalD
Le Grand BleuQuestion 2522
Arithmetic
What is the median of the following distribution? Class 120-170 170-220 220-270 270-320 320-370 Frequency 18 34 17 13 22
A
227B
220C
224D
216Question 2523
Arithmetic
What percentage of the workforce in India was self-employed in 2023-24, reflecting a growing trend towards entrepreneurship, as per the Economic Survey Report, 2024-25?
A
52.6 %B
58.4 %C
48.2 %D
62.8 %Question 2524
Arithmetic
In a certain code language, 'A + B' means 'A is the mother of B' 'A - B' means 'A is the brother of B' 'A x B' means 'A is the wife of B' 'A ÷ B' means 'A is the father of B' Based on the above, how is P related to T if 'P ÷ Q + R - S x T'?
A
Wife's mother's fatherB
Wife's sister's husbandC
Son's daughter's husbandD
Wife's father's motherQuestion 2525
Arithmetic
A, B, C, D, E, F, and G are sitting around a circular table facing the centre. Only C sits between A and E. E sits third to the left of D. B sits to the immediate left of D. G is not an immediate neighbour of E. How many people sit between C and G when counted from the right of C?
A
FourB
TwoC
ThreeD
One