RRB NTPC 2021-28-12-2020-2 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers

RRB NTPC 2021-28-12-2020-2 RRB Questions

1.
For any natural number n, 6ⁿ - 5ⁿ always ends with:
A.
5
B.
3
C.
7
D.
1
😑 View Answer Rough Work
ANSWER :
D. 1
2.
A can complete a piece of work in 20 days and B alone can complete the work in 30 days. Due to some other work, A had to leave the work before completion and for the last 5 days B alone did the work. The total time taken to complete the work is:
A.
12 days
B.
18 days
C.
15 days
D.
20 days
😑 View Answer Rough Work
ANSWER :
C. 15 days
3.

The numerator of a fraction is 2 less than the denominator. If the numerator is multiplied by 2 and the denominator is multiplied by 3, then the fraction becomes \( \frac{2}{9} \). The fraction is:

A.

\( \frac{5}{7} \)

B.

\( \frac{3}{5} \)

C.

\( \frac{7}{9} \)

D.

\( \frac{1}{3} \)

😑 View Answer Rough Work
ANSWER :

D. \( \frac{1}{3} \)

4.
The sum of two numbers is 1500. Their LCM is 16379. Two numbers are:
A.
1489, 11
B.
1479, 21
C.
1453, 47
D.
1053, 447
😑 View Answer Rough Work
ANSWER :
A. 1489, 11
5.
Which of the following is NOT a part of the circulatory system?
A.
Blood
B.
Heart
C.
Large intestine
D.
Arteries
😑 View Answer Rough Work
ANSWER :
C. Large intestine
6.
The Global Climate Change Alliance is an initiative of:
A.
European Union
B.
Continental Union
C.
World Union
D.
Greek Union
😑 View Answer Rough Work
ANSWER :
A. European Union
7.
A number was increased by 40% and there after decreased by 40%. The net change in the number in percentage is:
A.
no change
B.
16% increase
C.
16% decrease
D.
32% decrease
😑 View Answer Rough Work
ANSWER :
C. 16% decrease
8.
Yen is the currency of:
A.
Japan
B.
Bali
C.
Maldives
D.
South Korea
😑 View Answer Rough Work
ANSWER :
A. Japan
9.
Who gave the idea of a constituent assembly of India for the first time?
A.
Dr Rajendra Prasad
B.
M N Roy
C.
B N Rau
D.
B R Ambedkar
😑 View Answer Rough Work
ANSWER :
B. M N Roy
10.
The capacity of working by A and B is in the ratio 3 : 4. If A takes 12 days to finish the work, the time taken by B to finish the same work is:
A.
9 days
B.
16 days
C.
18 days
D.
12 days
😑 View Answer Rough Work
ANSWER :
A. 9 days