RRB NTPC 2025-04-09-2025-1 RRB Question Paper

RRB NTPC 2025-04-09-2025-1 RRB Questions

41.
Section - Mathematics
In △ABC, BD ⟂ AC at D and ∠DBC = 60°. E is a point on BC such that ∠CAE = 49°. What is the measure of ∠AEB?
A.
80°
B.
87°
C.
85°
D.
79°
ANSWER :
D. 79°
42.
The average weight of Rupesh, Mandar and Ketan is 45 kg. If the average weight of Rupesh and Mandar is 43 kg and that of Mandar and Ketan is 49 kg, then the weight of Mandar (in kg) is:
A.
64
B.
49
C.
69
D.
59
ANSWER :
B. 49
43.

Simplify the following.
2((\( \frac{5}{2} \))x² − 28x + 17) − 5(x² + 6x − 18)

A.

−86x + 124

B.

−86x − 124

C.

86x + 124

D.

86x − 124

ANSWER :

A. −86x + 124

44.

Pipe A can fill a tank in 17 hours, pipe B can fill the same tank in 24 hours and pipe C can fill the same tank in 18 hours. The time taken by them to fill the same tank if they operate together is:

A.

10 \( \frac{78}{191} \) hours

B.

6 \( \frac{78}{191} \) hours

C.

16 \( \frac{78}{191} \) hours

D.

13 \( \frac{78}{191} \) hours

ANSWER :

B. 6 \( \frac{78}{191} \) hours

45.
Neha, Rajat, and Avinash invest ₹1,430, ₹1,680, and ₹1,340, respectively, to start a business. If the profit at the end of the year is ₹1,780, then what is the share of Avinash in the profit?
A.
₹537
B.
₹536
C.
₹533
D.
₹538
ANSWER :
B. ₹536
46.

By how much is 65% of 75 greater than \( \frac{3}{5} \) of 25?

A.

30.75

B.

31.75

C.

27.75

D.

33.75

ANSWER :

D. 33.75

47.
The LCM of the numbers 4.7 and 0.04 is:
A.
9.4
B.
0.94
C.
94
D.
0.094
ANSWER :
A. 9.4
48.
A woman travels 488 km at 61 km/hr, a second distance of 468 km at 78 km/hr and a third distance of 210 km at 35 km/hr. Find her average speed for the whole journey (in km/hr).
A.
61.1
B.
68.8
C.
59.7
D.
58.3
ANSWER :
D. 58.3
49.
If the third proportional of 50 and 30 is x, then what is the value of x?
A.
21
B.
15
C.
20
D.
18
ANSWER :
D. 18
50.
If 3 times Mary's present age is 22 years more than 5 times Dia's present age, and 3 times Dia's present age is 2 years less than Mary's present age, then what is the difference (in years) between the ages of Mary and Dia?
A.
7
B.
13
C.
10
D.
15
ANSWER :
C. 10