RRB NTPC 2025-09-09-2025-3 RRB Question Paper

RRB NTPC 2025 - Undergraduate Level Question Papers

RRB NTPC 2025-09-09-2025-3 RRB Questions

41.
Section - Mathematics
8 years ago, the age of a father was 11 years more than twice his son's age. After how many years, from now, will he be twice his son's age?
A.
3
B.
7
C.
4
D.
2
😑 View Answer Rough Work
ANSWER :
A. 3
42.
Find the simple interest (in ₹) if a sum of ₹400 is borrowed for 6.5 years at 4% per annum rate of interest.
A.
154
B.
84
C.
204
D.
104
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ANSWER :
D. 104
43.
9 men can complete a piece of work in 16 days, while 5 women can do it in 18 days. In how many days can 2 women and 4 men complete the work?
A.
18 days
B.
16 days
C.
15 days
D.
20 days
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ANSWER :
D. 20 days
44.
The current population of a town is 15,250. It increases by 25% and 60% in two successive years but decreases by 57% in the third year. What is the population of the town at the end of the third year?
A.
13,115
B.
13,118
C.
13,110
D.
13,111
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ANSWER :
A. 13,115
45.
The value of \( \frac{2}{5} \)+\(\left(\frac{1}{1+\frac{4}{9}}\right)\) - \( \frac{4}{5} \) is
A.
\( \frac{19}{65} \)
B.
\( \frac{20}{73} \)
C.
\( \frac{24}{67} \)
D.
\( \frac{12}{59} \)
😑 View Answer Rough Work
ANSWER :
A. \( \frac{19}{65} \)
46.
If the interest earned during the 2nd year on a certain sum is ₹5,916, and the rate of interest is 20% per annum compounded annually, then the sum is:
A.
₹24,650
B.
₹23,995
C.
₹24,870
D.
₹25,540
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ANSWER :
A. ₹24,650
47.
In △ABC, BD ⟂ AC at D and ∠DBC = 55°. E is a point on BC such that ∠CAE = 56°. What is the measure of ∠AEB?
A.
88°
B.
90°
C.
85°
D.
91°
😑 View Answer Rough Work
ANSWER :
D. 91°
48.
If the radius of a sphere is halved, then find the ratio of volume of the original sphere with that of the new sphere.
A.
4 : 1
B.
8 : 1
C.
16 : 1
D.
2 : 1
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ANSWER :
B. 8 : 1
49.
Zeeshan travels 364 km at 91 km/hr, the next 441 km at 63 km/hr and the next 648 km at 81 km/hr. What is his average speed (in km/hr) for the whole journey? (Round off your answer to two decimal places)
A.
76.47
B.
69.95
C.
72.94
D.
79.14
😑 View Answer Rough Work
ANSWER :
A. 76.47
50.
Given that 730.51 = x, 730.73 = y and xz = y10, then the value of z is close to:
A.
14.22
B.
13.77
C.
14.31
D.
16.92
😑 View Answer Rough Work
ANSWER :
C. 14.31