RRB Group D 2025 Math Practice SET 1 for CBT: The RRB Group D 2025 exam is a highly competitive test conducted by the Indian Railways for the recruitment of candidates to various Group D posts. The Computer-Based Test (CBT) is the first stage of the selection process, and it includes sections on Mathematics, General Intelligence and Reasoning, General Science, and General Awareness. To excel in the Mathematics section, consistent practice and a strong understanding of fundamental concepts are essential.
This RRB Group D 2025 Math Practice Set 1 is designed to help candidates prepare effectively for the CBT. By solving this practice set, candidates can improve their problem-solving speed, accuracy, and confidence. Each question is crafted to reflect the difficulty level and pattern of the actual exam, ensuring that aspirants are well-prepared to tackle the challenges of the RRB Group D 2025 Mathematics section.
RRB Group D 2025 Math Practice SET 1 for CBT
Here are the MCQs:
Q.1. Find the smallest integer whose cube is equal to itself.
a) 1
b) 2
c) -1
d) 0
Q.2. A two-digit number has 3 for its unit’s digit, and the sum of the digits 1/7 equal to the number itself. Find the number.
a) 43
b) 53
c) 73
d) 63
Q.3. Which of these numbers has the most number of divisors?
a) 240
b) 156
c) 200
d) 172
Q.4. The arithmetic mean and geometric mean of two numbers are 7 and 2√10, respectively. Find the numbers.
a) 5, 4
b) 2, 20
c) 4, 10
d) 8, 50
Q.5. A number, when divided by 234, gives a remainder of 36. What will be the remainder when it is divided by 13?
a) 6
b) 9
c) 10
d) 11
Q.6. The HCF of 15, 25, and 42 is:
a) 27
b) 82
c) 1050
d) 1
Q.7. Find the smallest number that, when divided by 35, 40, and 60, leaves a remainder of 7 in each case.
a) 893
b) 800
c) 847
d) 814
Q.8. The LCM of 248 and 868 is 1736. The HCF of the same two numbers is:
a) 124
b) 248
c) 868
d) 1736
Q.9. Three pieces of aluminum rod of lengths 44 cm, 22 cm, and 55 cm, respectively, are given to a boy. He has to cut them into rods of the same length such that no aluminum waste is left. The maximum length (in cm) of such a rod will be:
a) 16.5 cm
b) 22 cm
c) 5.5 cm
d) 11 cm
Q.10. The greatest number that divides 155 and 307, leaving remainders 5 and 7, respectively, is:
a) 25
b) 30
c) 150
d) 15
Also Read: RRB Group D 2025 GK Practice SET-1 for CBT
Q.11. In a carton containing a dozen mirrors, some are broken. Which of the following can be the ratio of the number of broken mirrors to unbroken mirrors?
a) 3:7
b) 3:2
c) 4:7
d) 5:1
Q.12. Which of these sets of numbers are in continued proportion?
(i) 0.4, 3.6, 3.24
(ii) 7, 21, 63
(iii) 2.4, 9.6, 38.4
a) (i), (ii), and (iii)
b) (i) and (ii)
c) (ii) and (iii)
d) (ii) only
Q.13. In a bag, the ratio of red balls to green balls is 4:9. If 7 more red balls are added to the bag, the ratio of red balls to green balls becomes 5:6. How many green balls are there in the bag?
a) 12
b) 27
c) 9
d) 18
Q.14. Pens, pencils, and erasers in a box are in the ratio 3:2:1. If the prices of a pen, pencil, and eraser are ₹3, ₹2, and ₹2, respectively, and the cost of the box is ₹90, find the number of pens in the box.
a) 17
b) 19
c) 16
d) 18
Q.15. Aamir distributed 875 gifts among 4 children. The first child’s share is twice the second child’s, three times the third child’s, and four times the fourth child’s share. Find the sum of the total gifts received by the first and second children.
a) 610
b) 630
c) 620
d) 640
Q.16. Mr. Sharma, Mr. Gupta, and Ms. Sinha invested ₹4,000, ₹8,000, and ₹6,000, respectively, in a business. Mr. Sharma left after 6 months. If after 8 months, there was a gain of ₹234,000, what will be the share of Mr. Gupta?
a) ₹12,000
b) ₹20,000
c) ₹14,000
d) ₹16,000
Q.17. P, Q, and R jointly start a business. It was agreed that P would invest ₹25,000 for 6 months, Q ₹44,000 for 5 months, and R ₹50,000 for 3 months. Out of a total profit of ₹1,04,000, the amount received by P will be:
a) ₹30,000
b) ₹27,900
c) ₹40,920
d) ₹33,000
Q.18. A started a business with a capital of ₹4,50,000. After 3 months, B joined with a certain amount of capital. At the end of the year, the profit was shared in the ratio 3:2. How much (in ₹) did B invest?
a) ₹3,20,000
b) ₹4,20,000
c) ₹3,60,000
d) ₹4,00,000
Q.19. A and B invest ₹30,000 and ₹24,000, respectively, for one year. If they get a profit of ₹13,500, then the share of B in the profit is:
a) ₹6,000
b) ₹9,450
c) ₹9,000
d) ₹7,500
Q.20. A, B, and C invested ₹10,000, ₹12,000, and ₹15,000, respectively, for 5, 6, and 9 months in a business. If A’s share in the profit is ₹2,500, then the total profit is:
a) ₹12,550
b) ₹12,650
c) ₹12,700
d) ₹12,850
Also Read: RRB Group D 2025 Reasoning Practice SET 1 for CBT
Answers to the RRB Group D 2025 Math Practice SET 1 for CBT
Here are the answers:
- c
- d
- a
- c
- c
- d
- c
- a
- d
- c
- d
- c
- d
- d
- b
- d
- a
- d
- a
- d
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