RRB NTPC 2025-19-08-2025-2 RRB Question Paper

RRB NTPC 2025 - Undergraduate Level Question Papers

RRB NTPC 2025-19-08-2025-2 RRB Questions

41.
Section - Mathematics
The average of first 150 odd natural numbers, is:
A.
150.5
B.
151
C.
150
D.
149.5
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ANSWER :
C. 150
42.

If the interest earned during the 2nd year on a certain sum is ₹3,342, and the rate of interest is 20% per annum compounded annually, then the sum is:

A.

₹13,285

B.

₹13,925

C.

₹14,900

D.

₹14,075

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ANSWER :

B. ₹13,925

43.
If 2 times a son's age is added to his father's age, the sum is 36 years. If 2.5 times the father's age is added to the son's age, the sum is 72 years. What is the father's age (in years)?
A.
27
B.
31
C.
23
D.
32
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ANSWER :
A. 27
44.
The HCF of two numbers is 9 and the product of the two numbers is 8100. How many pairs of numbers satisfy the given conditions?
A.
5
B.
3
C.
2
D.
4
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ANSWER :
C. 2
45.
The product of two consecutive positive natural numbers is 650. The greater of the two numbers is:
A.
29
B.
43
C.
26
D.
31
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ANSWER :
C. 26
46.
Prashant and Nisha have to travel from Delhi to Kanpur in their respective cars. Prashant is driving at 72 km/hr while Nisha is driving at 64 km/hr. Find the time taken by Nisha to reach Kanpur if Prashant takes 16 hours.
A.
24 hours
B.
18 hours
C.
8 hours
D.
20 hours
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ANSWER :
B. 18 hours
47.
An item is marked at ₹1,200. Successive discounts of 20% and 10% are given. What is the final selling price?
A.
₹864
B.
₹960
C.
₹900
D.
₹880
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ANSWER :
A. ₹864
48.
Find the simple interest (in ₹) on ₹1,200 at an interest rate of 3% per month in 7 months.
A.
252
B.
41
C.
21
D.
42
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ANSWER :
A. 252
49.
The H.C.F. and the L.C.M. of two numbers are 51 and 306 respectively. If one of the numbers is 102, find the other one.
A.
102
B.
204
C.
175
D.
153
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ANSWER :
D. 153
50.
Nitin bought some sharpeners at the rate of ₹180/dozen. He sold them for ₹20 each. His profit percentage is ______% (rounded off to two decimal places).
A.
33.33
B.
35.33
C.
31.33
D.
37.33
😑 View Answer Rough Work
ANSWER :
A. 33.33