RRB NTPC 2025-07-08-2025-2 RRB Question Paper

RRB NTPC 2025-07-08-2025-2 RRB Questions

41.
Section - Mathematics
By selling 6 rubber-bands for a rupee, a man loses 40%. To gain 20% how many must he sell for a rupee?
A.
4
B.
5
C.
3
D.
2
ANSWER :
C. 3
42.
A number, when increased by 100%, gives 2780. The number is:
A.
1390
B.
695
C.
4170
D.
2780
ANSWER :
A. 1390
43.
The product of two consecutive natural numbers is 210. The greater of the two numbers is:
A.
21
B.
7
C.
15
D.
34
ANSWER :
C. 15
44.

Given that 1490.59 = x, 1490.94 = y and xz = y6, then the value of z is close to:

A.

9.29

B.

7.39

C.

9.56

D.

11.02

ANSWER :

C. 9.56

45.
The average of first 151 even numbers is
A.
152
B.
151.5
C.
152.5
D.
153
ANSWER :
A. 152
46.
In an election between two candidates, 80% of the registered voters cast their vote and 5% of the votes polled were found invalid. The winning candidate got 75% of the valid votes and won the election by a margin of 1805 votes. How many voters were registered?
A.
4750
B.
4751
C.
4748
D.
4749
ANSWER :
A. 4750
47.

Pipe A can fill a tank in 16 hours, pipe B can fill the same tank in 25 hours and pipe C can fill the same tank in 12 hours. The time taken by them to fill the same tank if they operate together is:

A.

5 \( \frac{85}{223} \) hours

B.

3 \( \frac{85}{223} \) hours

C.

1 \( \frac{85}{223} \) hours

D.

9 \( \frac{85}{223} \) hours

ANSWER :

A. 5 \( \frac{85}{223} \) hours

48.
Find the mean proportional of 25 and 16.
A.
18
B.
20
C.
17
D.
22
ANSWER :
B. 20
49.
Ram went to a shop and observed that the list price of a fan is ₹3,600. If the retailer has bought the fan for ₹2,800, then find the trade discount (correct to one decimal place).
A.
20%
B.
19.8%
C.
24.6%
D.
22.2%
ANSWER :
D. 22.2%
50.
In covering a distance of 182 km, Salaj takes 4 hours more than Kevin. If Salaj doubles his speed, then he would take 9 hours less than Kevin. Salaj's speed is:
A.
7 km/hr
B.
13 km/hr
C.
11 km/hr
D.
3 km/hr
ANSWER :
A. 7 km/hr