RRB Group D 2025 Math Practice SET 2 for CBT

The RRB Group D 2025 Math Practice Set 2 is designed to help candidates prepare for the Computer-Based Test (CBT). This practice set covers important topics such as arithmetic, algebra, geometry, and data interpretation, aligning with the official syllabus.

Solving these questions will enhance your speed, accuracy, and problem-solving skills, ensuring a strong performance in the exam.

RRB Group D 2025 Math Practice SET 2

Here are the MCQs:

Q.1. From 10 liters of a solution, 2 liters of water evaporated. The remaining solution was found to have 6% salt. What was the percentage of salt in the original solution?
a) 5.4%
b) 5.6%
c) 5%
d) 4.8%

Q.2. A metallic part of a machine is made from a mixture of copper, zinc, and lead mixed in the ratio of 13:6:1. If the weight of zinc in this part is 90 kg, then the total weight of the part will be:
a) 210 kg
b) 195 kg
c) 300 kg
d) 285 kg

Q.3. 140g brass is mixed with copper to prepare an alloy having brass and copper in the ratio 4:3. How much copper has been taken to prepare the alloy?
a) 105 g
b) 245 g
c) 60 g
d) 80 g

Q.4. In a bucket, milk and water are mixed in the ratio 2:1. If the ratio of milk to water is to be 1:2, the quantity of water to be added to the mixture is:
a) 1/2 of the bucket
b) 1/3 of the bucket
c) half of the bucket
d) one full bucket

Q.5. If a vessel gets filled by 15 glasses of milk where the capacity of each glass is 1.5 L, how many glasses are required to fill the same vessel if the capacity of each glass is 0.5 L?
a) 40
b) 45
c) 50
d) 55

Q.6. A contractor undertakes complete a work in 250 days. He employs 300 workers for 50 days and they complete 1/2 of the work. He then reduces the number of workers to 100, who work for 120 days, after which there are 20 days of holidays. How many workers must be employed for the remaining period to complete the work on time?
a) 74
b) 68
c) 50
d) 80

Q.7. A and B together can do a piece of work in 30 days. Together with C, they can complete the same work in 24 days. In how many days can C alone complete the same work?
a) 150
b) 120
c) 96
d) 90

Q.8. Radhika can complete a work in 15 days and Rishi can complete the same work in 30 days. Radhika started the work alone and left after 2 days of work. Then Rishi continued the work. Find the time taken by Rishi to complete the remaining work?
a) 26 days
b) 25 days
c) 23 days
d) 24 days

Q.9. Karthik and Sneha together can do a work in 25 days. Sneha and Madhuri together can do the same work in 20 days. Madhuri and Karthik together can do the same work in 15 days. How long will they take to complete the work if all three of them work together? (Round off to the nearest integer).
a) 13 days
b) 11 days
c) 17 days
d) 19 days

Q.10. A cistern has three pipes A, B, and C. A and B alone can completely fill the cistern in 4 hours and 3 hours, respectively. C can empty the completely filled cistern in 2 hours. If all three pipes are opened simultaneously in the empty cistern, then the cistern will get completely full in:
a) 16 hours
b) 12 hours
c) 14 hours
d) 10 hours

Q.11. A pipe can fill a tank in 15 hours. The second pipe can empty the full tank in 24 hours. If both pipes are opened simultaneously, how long will it take to fill the tank?
a) 150 hours
b) 70 hours
c) 40 hours
d) 60 hours

Q.12. Pipe A can fill a cistern in 6 hours, and B can fill it in 30 hours. Both pipes were turned on, but there was a leakage in the bottom of the cistern. So, the cistern took 30 minutes more to fill. The time that the leakage will take to empty the full cistern is:
a) 54 hours
b) 65 hours
c) 60 hours
d) 55 hours

Q.13. Three pipes A, B, and C together can fill a tank in 8 hours. The three pipes were opened for 2 hours, after which C was closed. Later, A and B filled the remaining part in 9 hours. The number of hours taken by C alone to fill the tank is:
a) 20
b) 12
c) 24
d) 13

Q.14. One pipe can fill a tank three times as fast as another pipe. Together, the two pipes can fill the tank in 32 minutes. The slower pipe alone will be able to fill the tank in __ minutes.
a) 96
b) 144
c) 64
d) 128

Q.15. The average speed of Gaurav during a two-way journey is 15 km/h. If he walked a distance of 20 km every hour while going, then his speed while returning will be:
a) 11 km/h
b) 15 km/h
c) 12 km/h
d) 10 km/h

Q.16. Reena reaches a birthday party 20 minutes late if she walks at 3 km/h from her house. If she increases her speed to 4 km/h, she would reach 30 minutes early. The distance between her house and the venue of the birthday party is:
a) 9 km
b) 7 km
c) 10 km
d) 4 km

Q.17. A man traveled at a speed of 20 m/min for 100 minutes and at a speed of 70 m/min for 50 minutes. His average speed is:
a) 25 m/min
b) 35 m/min
c) 110/3 m/min
d) 70/3 m/min

Q.18. A motor car starts with a speed of 60 km/h and increases its speed after every two hours by 15 km/h. In how much time will it cover a distance of 360 km?
a) 2 hours
b) 9 hours
c) 7 hours
d) 5 hours

Q.19. A truck travels at a speed of 60 km/h from city P to city Q and returns to city P by the same route at a speed of 100 km/h. What is the average speed of the truck for the given journey?
Group D 18/08/2022 (Morning)
a) 80 km/h
b) 85 km/h
c) 70 km/h
d) 75 km/h

Also Read: RRB Group D 2025 Math Practice SET 1 for CBT

Answers to the RRB Group D 2025 Math Practice SET 2

Here are the answers:

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

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