RRB NTPC 2025-02-09-2025-2 RRB Question Paper

RRB NTPC 2025-02-09-2025-2 RRB Questions

41.
Section - Mathematics
The LCM of the numbers 10.8 and 0.06 is:
A.
10.8
B.
108
C.
1.08
D.
0.108
ANSWER :
A. 10.8
42.

Simplify the following.
3((\( \frac{6}{3} \))x² − 21x + 18) − 6(x² + 5x − 18)

A.

−93x − 162

B.

93x − 162

C.

93x + 162

D.

−93x + 162

ANSWER :

D. −93x + 162

43.
A company offers a scheme discount of 'buy 5 get 3 free' offer on shirts. Find the discount percentage.
A.
36.3%
B.
39.3%
C.
30%
D.
37.5%
ANSWER :
D. 37.5%
44.
The average weight of a family of five members whose weights are 40 kg, 49 kg, 56 kg, 75 kg and 36 kg is:
A.
50.2 kg
B.
53.2 kg
C.
52.2 kg
D.
51.2 kg
ANSWER :
D. 51.2 kg
45.
Kushal and Brijesh together invested ₹75,100 in a business. At the end of the year, out of a total profit of ₹16,000, Brijesh's share was ₹4,400. What was the difference between their investments?
A.
₹34,043
B.
₹35,768
C.
₹34,385
D.
₹33,795
ANSWER :
D. ₹33,795
46.
In △ABC, BD ⟂ AC at D and ∠DBC = 72°. E is a point on BC such that ∠CAE = 56°. What is the measure of ∠AEB?
A.
69°
B.
65°
C.
71°
D.
74°
ANSWER :
D. 74°
47.
The product of two consecutive natural numbers is 240. The greater of the two numbers is:
A.
35
B.
23
C.
19
D.
16
ANSWER :
D. 16
48.

The simple interest on a certain sum for 7 \( \frac{2}{3} \) years at the rate of 5.4% per annum is ₹4,347. What will be the amount payable on the same sum at the rate of 7.5% per annum simple interest in 4 \( \frac{4}{5} \) years?

A.

₹14,282

B.

₹14,280

C.

₹14,273

D.

₹14,272

ANSWER :

B. ₹14,280

49.
Find the mean proportional between 26 and 104.
A.
53
B.
52
C.
51
D.
49
ANSWER :
B. 52
50.
Mahita is painting the four walls of her study room, which is shaped like a cube with a side length of 18.5 feet. What is the total area she needs to paint (in square feet)?
A.
1385
B.
1358
C.
1396
D.
1369
ANSWER :
D. 1369