← RRB-NTPC-UG-2025
RRB · Mathematics

Set 1 — 07 May 2026 (12:45 PM - 2:15 PM)

2025 · 30 questions · First 10 Solutions Free
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Q1 mcq
If the principal is ₹1000, the rate is 5% per annum, and the time is 2 years, what is the simple interest?
a.
₹500
b.
₹200
c.
₹100 Correct Answer
d.
₹50

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Q2 mcq
Trains from Delhi, Lucknow, and Jaipur depart every 12 minutes, 18 minutes, and 27 minutes, respectively. If all depart together at 6:00 am, when will they depart together again?
a.
7:36 am
b.
7:48 am Correct Answer
c.
7:24 am
d.
7:40 am

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Q3 mcq
If 5 and 10 are given, what is the third proportional to these numbers?
a.
30
b.
20 Correct Answer
c.
25
d.
15

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Q4 mcq
A student scores 75, 80 and 90 in three tests with weights 2,3 and 5 respectively. What is the weighted average score?
a.
84 Correct Answer
b.
82
c.
83
d.
85

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Q5 mcq
A retailer buys 60 pens and sells them at the purchase price of 72 pens. Determine his profit percentage.
a.
12%
b.
16%
c.
20% Correct Answer
d.
15%

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Q6 mcq
A shopkeeper offers the following schemes on toys of the same marked price. (A) Successive discounts of 44% and 12% on any number of toys bought. (B) Successive discounts of 18%, 43% and 23% on any number of toys bought. (C) 8% discount on the first 4 toys and 38% discount on each toy thereon. (D) On buying ten items, the customer is billed for only seven items. A customer wants to buy 10 toys. Which of the above schemes is the least beneficial to her?
a.
D
b.
C Correct Answer
c.
A
d.
B

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Q7 mcq
The ages of two siblings add up to 44 years. If one sibling is 4 years younger than twice the other's age, what is the difference between their ages?
a.
10 years
b.
12 years Correct Answer
c.
14 years
d.
8 years

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Q8 mcq
A train runs at 72 km/h for 3 hours and then at 60 km/h for 1.5 hours. What is the average speed of the train?
a.
67 km/h
b.
68 km/h Correct Answer
c.
65 km/h
d.
66 km/h

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Q9 mcq
If sin6A= cos12A, find the value of tan9A + cot9A.
a.
1
b.
0
c.
2 Correct Answer
d.
-2

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Q10 mcq
A shopkeeper marks an item at ₹4,000. During a festival, he first offers a discount of 25% on the marked price. After a week, he increases the discounted price by 20% to earn more profit. What is the final selling price of the item after these successive changes?
a.
₹3,500
b.
₹3,700
c.
₹3,600 Correct Answer
d.
₹3,400

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Q11 mcq
The speeds of two cars are in the ratio 5 : 7. The faster car covers 140 km in 2 hours. How much distance will the slower car cover in the same time?
a.
100 km
b.
140 km
c.
70 km
d.
90 km
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Q12 mcq
Evaluate 24 3 + (-7) 3 + (-17) 3
a.
8450
b.
8396
c.
8345
d.
8568
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Q13 mcq
A television is marked at ₹50,000. A retailer gives a 15% discount on the first 70% of the price and a 5% discount on the rest. What is the total percentage discount offered?
a.
13%
b.
12%
c.
10%
d.
11%
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Q14 mcq
Which of the following digits should replace X so that the three-digit number 2X2 is divisible by 4?
a.
1
b.
0
c.
4
d.
2
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Q15 mcq
Four numbers a, b, c and d satisfy the relation (a + 2) : (b − 2) = (c + 4) : (d − 4). If a = 6, b = 8 and c = 12, find the value of d.
a.
16
b.
14
c.
20
d.
18
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Q16 mcq
The largest four-digit number which when divided by 7, 6 and 10 leaves the remainder 5 in each case, is:
a.
9909
b.
9875
c.
9793
d.
9964
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Q17 mcq
Two trains, X and Y, are running on parallel tracks. Train X is 200 m long and travels at 72 km/hr. Train Y is 300 m long. If the trains are traveling in opposite directions, they pass each other completely in 15 seconds. If the trains were traveling in the same direction, how long would it take for the faster train to overtake the slower one?
a.
72 seconds
b.
67.5 seconds
c.
75 seconds
d.
78 seconds
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Q18 mcq
The diagonals of a rhombus-shaped field are 224 m and 420 m long. What is the perimeter (in m) of the field?
a.
904
b.
952
c.
944
d.
922
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Q19 mcq
Calculate the total amount when ₹4000 is invested at 10% compound interest per annum, compounded annually for 2 years.
a.
₹4840
b.
₹4080
c.
₹4400
d.
₹4800
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Q20 mcq
Two taps can fill a cistern in 4 hours and 11 hours, respectively. A third tap can empty it in 11 hours. How long (in hours) will it take to fill one-fourth of the empty cistern if all the taps are opened together?
a.
2
b.
3
c.
4
d.
1
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Q21 mcq
A transaction code 92419 is not divisible by 13. To make it divisible by 13, the least digit should be appended at the end of the number. What is that digit?
a.
6
b.
5
c.
4
d.
2
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Q22 mcq
The sum of two numbers is 72. If the larger number is increased by 8 and the smaller number is decreased by 6, then the resulting numbers are in the ratio 3 : 2, respectively. Find the smaller of the original two numbers.
a.
34.2
b.
32.5
c.
35
d.
35.6
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Q23 mcq
If 40% of a number exceeds 25% of it by 36, then the number is:
a.
240
b.
280
c.
260
d.
220
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Q24 mcq
The average of k numbers is x. If 48 is subtracted from each of any two of the numbers, then we get (x-12) as the new average. Find the value of k.
a.
10
b.
5
c.
3
d.
8
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Q25 mcq
Find the single discount equivalent to three successive discounts of 10% on a commodity.
a.
28.2%
b.
25.8%
c.
27.1%
d.
26.9%
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Q26 mcq
a.
A.
b.
B.
c.
C.
d.
D.
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Q27 mcq
a.
1
b.
10.5
c.
4.5
d.
0
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Q28 mcq
A tank is being filled by two taps, M and N. M fills the tank completely in can empty the completely filled tank in 27 hours. How long will it take to leakage continues?
a.
A.
b.
B.
c.
C.
d.
D. 18 hours and N fills it in 9 hours. A leakage at the bottom of the tank fill the empty tank completely if both taps are opened while the
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Q29 mcq
The curved surface area of a solid cylinder is numerically equal to the total cylinder. If the height and radius of the first cylinder are 7 cm and 4 cm, respectively.
a.
A.
b.
B.
c.
C.
d.
D.
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Q30 mcq
a.
24
b.
21
c.
25
d.
22 GA
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