RRB NTPC 2025-28-08-2025-2 RRB Question Paper

RRB NTPC 2025 - Undergraduate Level Question Papers

RRB NTPC 2025-28-08-2025-2 RRB Questions

41.
Section - Mathematics
The average weight of Gopal, Akshay and Atul is 45 kg. If the average weight of Gopal and Akshay is 44 kg and that of Akshay and Atul is 46 kg, then the weight of Akshay (in kg) is:
A.
65
B.
55
C.
60
D.
45
😑 View Answer Rough Work
ANSWER :
D. 45
42.
What smallest number should be added to 74978 so that the sum is completely divisible by 24?
A.
22
B.
17
C.
20
D.
26
😑 View Answer Rough Work
ANSWER :
A. 22
43.

The value of 8² + \(\sqrt{9^2}\) − 4\(\sqrt{25}\) − 14 is

A.

39

B.

45

C.

49

D.

48

😑 View Answer Rough Work
ANSWER :

A. 39

44.
A number, when increased by 80%, gives 2520. The number is:
A.
4200
B.
1400
C.
2800
D.
700
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ANSWER :
B. 1400
45.
The LCM of 4³ × 6² × 15, 4² × 15² × 19 and 6³ × 15² × 19² is:
A.
2⁸ × 3⁴ × 5² × 19²
B.
2⁸ × 3⁵ × 5³ × 19²
C.
2⁸ × 3⁵ × 5² × 19²
D.
2⁹ × 3⁵ × 5² × 19²
😑 View Answer Rough Work
ANSWER :
C. 2⁸ × 3⁵ × 5² × 19²
46.
If one interior angle of a regular polygon is greater than its exterior angle by 144°, how many sides does the polygon have?
A.
21
B.
19
C.
18
D.
20
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ANSWER :
D. 20
47.

Pipe P can fill \( \frac{5}{7} \) part of a tank in 30 hours, and pipe Q can fill \( \frac{4}{7} \) part of the same tank in 12 hours. Both P and Q were kept open for 7 hours, then both were closed. Pipe R alone was then opened and it emptied the water in the tank in 9 hours. Pipes P, Q and R together can fill the empty tank in:

A.

56 hours

B.

82 hours

C.

78 hours

D.

63 hours

😑 View Answer Rough Work
ANSWER :

D. 63 hours

48.
Anshuman and Kunal together invested ₹48,300 in a business. At the end of the year, out of a total profit of ₹14,000, Kunal's share was ₹6,000. What was the difference between their investments?
A.
₹5,940
B.
₹6,500
C.
₹7,640
D.
₹6,900
😑 View Answer Rough Work
ANSWER :
D. ₹6,900
49.
Simplify: x(8x − 7) + 7(x² − 5) + 14
A.
−15x² − 7x + 21
B.
15x² − 7x − 21
C.
−15x² − 7x − 21
D.
15x² − 7x + 21
😑 View Answer Rough Work
ANSWER :
B. 15x² − 7x − 21
50.
Yash travels 152 km at 38 km/hr, the next 189 km at 63 km/hr and the next 375 km at 75 km/hr. What is his average speed (in km/hr) for the whole journey? (Round off your answer to two decimal places)
A.
59.67
B.
51.83
C.
58.22
D.
70.03
😑 View Answer Rough Work
ANSWER :
A. 59.67