RRB-NTPC 2021 Mathematics

Practice subject-wise previous year questions

Question 2651
Arithmetic

A, B, C, D, E, F, and G are sitting around a circular table facing the centre. B sits third to the left of F. C sits second to the left of D. Only F sits between A and C. G is not an immediate neighbour of B. How many people sit between A and D when counted from the left of D?

A
One
B
Four
C
Two
D
Three
Question 2652
Arithmetic

Which of the following options is a final good in the context of Indian economy?

A
Flour
B
Biscuits
C
Sugar
D
Wheat
Question 2653
Arithmetic

Which Article of the Constitution of India mentions the Fundamental Duty of defending the country and rendering national service when called upon to do so?

A
Article 51A (d)
B
Article 51A (e)
C
Article 51A (a)
D
Article 51A (c)
Question 2654
Arithmetic

Which of the following letter-clusters should replace # and % so that the pattern and relationship followed between the letter-cluster pair on the left side of :: is the same as that on the right side of :: ? #: KSB :: NVE : %

A
# = FUW, % = SAJ
B
# = FNW, % = SAJ
C
# = FNW, % = SAI
D
# = FNW, % = SUY
Question 2655
Arithmetic

According to Airports Authority of India, which Indian airport was the busiest in terms of passenger traffic in Financial Year 2023-2024?

A
Kempegowda International Airport, Bengaluru
B
Rajiv Gandhi International Airport, Hyderabad
C
Chhatrapati Shivaji Maharaj International Airport, Mumbai
D
Indira Gandhi International Airport, Delhi
Question 2656
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) 7 € 2 5 3 © 8 © 4 € 9 3 € 5 # % * 3 4 7 $ 1 (Right)  How many such symbols are there each of which is immediately preceded by a number and also immediately followed by a number?

A
8
B
5
C
6
D
7
Question 2657
Arithmetic

In a certain code language, 'A + B' means 'A is the sister of B' 'A - B' means 'A is the father of B' 'A x B' means 'A is the daughter of B' 'A ÷ B' means 'A is the son of B' Based on the above, how is P related to T if 'P + Q - R - S x T'?

A
Daughter's husband's sister
B
Father's sister
C
Daughter-in-law
D
Sister's husband's mother
Question 2658
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
MP - LK
B
NP - KM
C
KM - HJ
D
HJ - EG
Question 2659
Arithmetic

In March 2021, what important decision did the Supreme Court of India make regarding disability rights?

A
It removed reservations for persons with disabilities.
B
It banned all exams for persons with disabilities.
C
It allowed only private companies to hire persons with disabilities.
D
It said disability rights are a part of fundamental rights.
Question 2660
Arithmetic

This question is based on the five, three-digit numbers given below. (Left) 617 335 930 459 571 (Right) (Example-697- First digit = 6, second digit = 9 and third digit = 7) (Note: All operations to be done from left to right.) What will be the resultant if the first digit of the highest number is added to the third digit of the lowest number?

A
13
B
15
C
17
D
14
Question 2661
Arithmetic

Which of the following letter-clusters should replace # and % so that the pattern and relationship followed between the letter-cluster pair on the left side of :: is the same as that on the right side of ::? #: QSO :: XZV: %

A
# = SFR, % = POS
B
# = TVR, % = UWS
C
# = SVR, % = UWU
D
# = TUR, % = UET
Question 2662
Arithmetic

Select the pair that follows the same pattern as that followed by the two pairs given below. Both pairs follow the same pattern.   HMP : KON USQ : XUO

A
DLV : GNT
B
KWZ : GSC
C
DWP : JZI
D
BIO : FNK
Question 2663
Arithmetic

Ramesh purchased (4x-3y) dolls from a shop at the rate of ₹ (x+y) per doll. Find the total money paid by Ramesh to the shopkeeper.

A
$(x^2-xy + 3y^2)$
B
$(4x^2+xy-3y^2)$
C
$(4x^2-xy + y^2)$
D
$(x^2-xy + y^2)$
Question 2664
Arithmetic

What should come in place of the question mark (?) in the given series?   428, 405, 372, ?, 276, 213

A
329
B
229
C
339
D
319
Question 2665
Arithmetic

A shopkeeper sold a book for ₹225 at a loss of 10%. At what price (in ₹) should he have to sell it to gain 24% on it?

A
310
B
307
C
311
D
308
Question 2666
Arithmetic

Foreign Direct Investment (FDI) is a key aspect of globalisation. What is a major benefit of FDI for developing countries like India?

A
Currency appreciation
B
Increase in taxation
C
Trade deficits
D
Access to technology and employment
Question 2667
Arithmetic

A group of numbers and symbols is coded using letter codes as per the codes given below and the conditions that follow. Study the given codes and conditions and answer the question that follows. Note: If none of the conditions apply, then codes for the respective number/symbol are to be followed directly as given in the table. Numb er/sym bol 5 2 3 4 $ & 6 @ # % + 8 9 7 Code A D F G H J K L Z X C V B M Conditions: If the first element is a symbol and the last a number, the codes for these two (the first and the last elements) are to be interchanged. If the first element is an odd number and the last an even number, the first and last elements are to be coded as $. If both second and third elements are perfect squares, the third element is to be coded as the code for the second element. What will be the code for the following group? 3 4 9 7

A
MGBF
B
FGGM
C
FGBM
D
FBBM
Question 2668
Arithmetic

Harappan trade relations extended to:

A
Rome
B
Persia
C
Mesopotamia
D
Greece
Question 2669
Arithmetic

Which of the following is a unit of the dimension 'length'?

A
Joule
B
Metre
C
Ampere
D
Kilogram
Question 2670
Arithmetic

KX 3 is related to OV -9 in a certain way. In the same way, IR 11 is related to MP -1. To which of the given options is JG -2 related, following the same logic?

A
NE -14
B
OE -14
C
OF -13
D
NF -15
Question 2671
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 to/subtracting from/multiplying with 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on on 1 and 3 is not allowed.) (36, 27, 41) (45, 36, 50)

A
(74, 65, 89)
B
 (53, 44, 58)  
C
(28, 19, 43)
D
(61, 52, 56)
Question 2672
Arithmetic

Which of the following features is NOT typical of the Thar Desert?

A
Shifting dunes
B
Inland drainage
C
Oases
D
Dense evergreen forests
Question 2673
Arithmetic

The Red Shirt Movement, also known as Khudai Khidmatgar, was led by which Indian freedom fighter in the North-West Frontier Province?

A
Subhas Chandra Bose
B
Khan Abdul Ghaffar Khan
C
Maulana Abul Kalam Azad
D
Madan Mohan Malviya
Question 2674
Arithmetic

How does the writ jurisdiction of the High Courts differ from that of the Supreme Court?

A
High Courts can issue writs only against state governments, not the Centre.
B
High Courts can issue writs for purposes beyond Fundamental Rights, unlike the Supreme Court.
C
High Courts can issue writs only in appellate cases, not in original jurisdiction.
D
High Courts require prior approval from the Supreme Court before issuing writs.
Question 2675
Arithmetic

Q, R, S, T, U, V and Y are sitting around a circular table facing the centre of the table. Y sits fourth to the left of S. R sits fourth to the right of T. Only two people sit between S and T when counted from the left of S. V is not an immediate neighbour of R or T. U is not an immediate neighbour of V. Who sits third to the right of Q?

A
Y
B
T
C
U
D
R