Time and Work for RRB PO/Clerk Mains 2018: 16 September

Time and Work for RRB PO/Clerk Mains 2018: 16 September

1. To complete a work, A and B take 30 days, B and C take 24 days, and C and A take 20 days. They all start together and work for 5 days after which B and C leave. How many more days will A take to finish the remaining work?

1. 11
2. 22
3. 28
4. 33
5. None of these

2. A certain number of people completed a job in 24 days. If there were 2 persons less, the work would have taken 6 more days. How many persons were there initially?

1. 10
2. 14
3. 16
4. 18
5. 15

Direction (3-5). Answer the following questions based on the following information.

Ram, Ravi and Rahim working alone can complete fencing a wall in 12, 18 and 27 days respectively. All of them start fencing the wall together as a team and after 2 days, Ram left the team. Ravi and Rahim continued to fence until Ravi fell ill and hence he had to leave the team. Then, Rahim finished fencing the wall in the last 5 days.

3. Which pair among the following will be able to finish fencing the wall in the least time?

1. Ram and Rahim
2. Ravi and Ram
3. Rahim and Ravi
4. Can’t be determined
5. None of these

4. How many days did it take for the team to finish the fencing the well?

1. 15
2. 10
3. 13
4. 11
5. 12

5. How many day Ravi did the work?

1. 5
2. 6
3. 3
4. 8
5. None of these

6. A does half as much work as B in the three-fourth of the time. If together they take 18 days to complete the work, how much time shall B take to do it?

1. 20
2. 30
3. 40
4. 25
5. 24

7. Shiva can do 2/3rd of the work in 18 days. In how many days can be finish 1/4th of the work?

1. 6.5
2. 6.75
3. 6
4. 12.5
5. None of these

8. Forty persons can finish a work in 60 days. If 40 Persons start the work and at the end of every 10 days 40 more persons of the same efficiency join them, then how long will it take to complete the work?

1. 30
2. 40
3. 50
4. 35
5. None of these

9. A team has a food stock for N number of days. After 20 days, 1/4th of the team quits and the food lasted for another N number of days for the remaining persons in the Team. What is the value of N?

1. 80
2. 60
3. 70
4. 100
5. None of these

10. N men can do a piece of work in 8 days. The same work can be done by (N+4) men in 6 days. Find the value of N.

1. 10
2. 12
3. 14
4. 15
5. None of these

Answers:

1. 4
2. 1
3. 1
4. 4
5. 2
6. 2
7. 2
8. 1
9. 1
10. 2