RRB NTPC 2021-21-03-2021-2 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers

RRB NTPC 2021-21-03-2021-2 RRB Questions

41.
After deducting 10% from a certain sum, and then deducting 20% from the remainder, a sum of ₹3,600 is left. Find the original sum (in ₹).
A.
6,000
B.
3,800
C.
5,000
D.
4,000
ANSWER :
C. 5,000
42.
Four words have been given, out of which three are alike in some manner and one is different. Select the odd one.
A.
Goldsmith
B.
Doctor
C.
Blacksmith
D.
Carpenter
ANSWER :
B. Doctor
43.
Select the option that is related to the third number in the same way as the second number is related to the first number.
36 : 216 :: 81 : ?
A.
486
B.
729
C.
512
D.
900
ANSWER :
B. 729
44.
Vikram Samvat calendar is ______ years ahead of the Gregorian calendar.
A.
46.7
B.
66.7
C.
56.7
D.
76.7
ANSWER :
C. 56.7
45.
When x + y + z = 16 and xy + yz + zx = 78, find the value of x³ + y³ + z³ - 3xyz.
A.
352
B.
365
C.
350
D.
360
ANSWER :
A. 352
46.
The Ministry of Environment and Forest launched Paryavaran Vahini Scheme in ______ with the basic objective of encouraging people's participation in environmental protection.
A.
July 1990
B.
July 1994
C.
June 1992
D.
June 1988
ANSWER :
C. June 1992
47.

If \(\sqrt{x}\) + \(\frac{1}{\sqrt{x}}\) = 3, then find the value of x² + \( \frac{1}{x^2} \).

A.

53

B.

47

C.

51

D.

49

ANSWER :

B. 47

48.

Kunal was asked to find \( \frac{5}{6} \) times of a number. He multiplied it by \( \frac{6}{5} \). As a result, he got an answer which was more than the correct answer by 572. The number was:

A.

2860

B.

5720

C.

1560

D.

2160

ANSWER :

C. 1560

49.
A person travelled 120 km by steamer, 450 km by train and 60 km by horse. It took 13 h 30 min. If the speed of the train is 3 times that of the horse and 1.5 times that of the steamer, find the speed of the train.
A.
65 km/h
B.
64 km/h
C.
60 km/h
D.
62 km/h
ANSWER :
C. 60 km/h
50.
₹4,800 becomes ₹6,000 in 4 years at a certain rate of compound interest. What will be the amount after 12 years at the same rate of compound interest?
A.
₹12,000
B.
₹8,400
C.
₹9,600
D.
₹9,375
ANSWER :
D. ₹9,375