RRB NTPC 2025-22-08-2025-1 RRB Question Paper

RRB NTPC 2025-22-08-2025-1 RRB Questions

41.
Section - Mathematics
If the marked price of a book is ₹900, then find the selling price of the book after getting discount of 13%.
A.
₹891
B.
₹789
C.
₹783
D.
₹889
ANSWER :
C. ₹783
42.
The average of three numbers is 20. If two of them are 18 and 28, the third number is:
A.
15
B.
16
C.
14
D.
13
ANSWER :
C. 14
43.
An amount of ₹638 is divided among three persons in the ratio of 2 : 5 : 4. The difference between the largest and the smallest shares (in ₹) in the distribution is:
A.
76
B.
110
C.
157
D.
174
ANSWER :
D. 174
44.
2 men can complete a piece of work in 18 days, while 4 women can do it in 6 days. In how many days can 6 women and 9 men complete this work?
A.
1 day
B.
2 days
C.
3 days
D.
4 days
ANSWER :
B. 2 days
45.
If 2 times Mary's present age is 20 years more than 6 times Diya's present age, and 5 times Diya's present age is 6 years less than Mary's present age, then what is the difference (in years) between the ages of Mary and Diya?
A.
15
B.
18
C.
16
D.
14
ANSWER :
D. 14
46.
Anaya has to reach Hyderabad which is 574 km away in 18 hours. His starting speed for 11 hours was 36 km/hr. For the next 136 km his speed was 34 km/hr. By what speed he must travel now so as to reach Hyderabad in the decided time of 18 hours?
A.
8 km/hr
B.
14 km/hr
C.
9 km/hr
D.
20 km/hr
ANSWER :
B. 14 km/hr
47.

The simple interest on a certain sum for 7 \( \frac{1}{3} \) years at the rate of 4.5% per annum is ₹6,270. What will be the amount payable on the same sum at the rate of 8.6% per annum simple interest in 11 \( \frac{1}{2} \) years?

A.

₹37,783

B.

₹37,791

C.

₹37,784

D.

₹37,794

ANSWER :

B. ₹37,791

48.
Find the mean proportional between 18 and 32.
A.
24
B.
21
C.
26
D.
23
ANSWER :
A. 24
49.

If x = a cosecA sinB, y = b cosecA cosB, and z = c cotA, then what is the value of \(\frac{x^2}{a^2}+\frac{y^2}{b^2}-\frac{z^2}{c^2}\)?

A.

-2

B.

-1

C.

0

D.

1

ANSWER :

D. 1

50.
Find the simple interest (in ₹) on ₹1,200 at an interest rate of 4% per month for 2 months.
A.
₹96
B.
₹16
C.
₹28
D.
₹8
ANSWER :
A. ₹96