RRB Group D 2025 Math Practice SET 3 for CBT Exam

RRB Group D 2025 Math Practice SET 3: The RRB Group D 2025 Math Practice Set 3 for the CBT Exam is designed to help candidates prepare effectively for the Mathematics section of the Railway Recruitment Board (RRB) Group D examination. This practice set includes a variety of questions that cover essential topics such as arithmetic, algebra, geometry, trigonometry, and data interpretation.

By working through these problems, candidates can strengthen their problem-solving skills, improve their speed and accuracy, and gain confidence in tackling the quantitative section of the exam. The set is structured to simulate the actual exam environment, providing a realistic practice experience to ensure optimal performance on the day of the test.

RRB Group D 2025 Math Practice SET 3

Here are the MCQs:

1. A merchant marks the price of a saree 20% above the cost price and gives a 5% discount on the marked price. The profit percentage is:
a) 10%
b) 12%
c) 14%
d) 13%

2. A rubber string is stretched to increase its length by 40%, and then it is released. By what percentage does its length decrease to return to its original state?
a) 40%
b) 34.25%
c) 32.5%
d) 28.57%

3. A and B together can complete a work in 6 days, B and C together can complete it in 12 days, and C alone can complete it in 36 days. How many days will A, B, and C together take to complete the work?
a) 5 days
b) 5.5 days
c) 5.25 days
d) 5.75 days

Also Read: RRB NTPC Undergraduate Level Math Practice Set-3 for CBT

4. At what rate of interest will Rs. 360 amount to Rs. 522 in 5 years?
a) 8%
b) 8.5%
c) 9%
d) 9.5%

5. The ratio of two numbers is 4 : 5, and their LCM is 100. The sum of the two numbers is:
a) 90
b) 40
c) 50
d) 45

6. The compound interest on a certain principal for 2 years is Rs. 410, and the simple interest is Rs. 400. The rate of interest is:
a) 4%
b) 5%
c) 4.5%
d) 5.1%

7. Some workers complete 3773​ of a work in 25 days. To complete the remaining work in 21 days, 14 more workers are hired. How many workers were initially employed?
a) 12
b) 16
c) 18
d) 20

8. If 9 bulbs are used for 4 hours daily for 30 days, the electricity bill is Rs. 225. For how many days will 5 bulbs be used daily for 6 hours to result in a bill of Rs. 375?
a) 60
b) 55
c) 50
d) 45

9. A and B each took 8 wickets for 28 runs. Later, A took 1 more wicket for 35 runs, and B took 4 more wickets for 56 runs. Whose wicket-taking average is better?
a) A is better
b) B is better
c) Both are equal
d) None of the above

10. A person’s salary is first reduced by 50% and then increased by 50%. What is the net percentage change in the salary?
a) 0%
b) 25% decrease
c) 25% increase
d) 50% decrease

11. At what rate of interest will Rs. 900 amount to the same interest in 4 years as Rs. 720 amounts to in 9 years at 5% interest?
a) 4%
b) 5%
c) 6%
d) 7%

12. In a panchayat election, two candidates contested. Out of 9820 votes, 110 were invalid. The winning candidate received 6 votes for every 4 votes received by the losing candidate. What is the margin of victory?
a) 1900
b) 1930
c) 1942
d) 1950

13. A fish seller sells fish at a 10% loss due to spoilage. If the cost price of the fish is Rs. 250, what is the selling price?
a) Rs. 220
b) Rs. 230
c) Rs. 225
d) Rs. 235

14. The difference between the largest and smallest numbers formed using the digits 8, 9, 0, and 7 is:
a) 9081
b) 1809
c) 2047
d) 2781

15. A 280-meter-long train travels at 60 km/h. How much time (in seconds) will it take to cross a 220-meter-long platform?
a) 20
b) 25
c) 30
d) 35

Also Read: Railway RRB NTPC Graduate Level Math Practice Set-2 for CBT

Answers to the RRB Group D 2025 Math Practice SET 3

Here are the Answers:

1. c
2. d
3. a
4. c
5. d
6. b
7. c
8. a
9. c
10. b
11. b
12. c
13. c
14. d
15. c

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