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- Question
A can do a piece of work in 10 days and B can do it in 12 days. They work together for 3 days. Then B leaves and A alone continues. 2 days after that C joins and the work is completed in 2 days more. In how many days can C do it, if he works alone ?
Options- A. 30 days
- B. 50 days
- C. 40 days
- D. 60 days
- Correct Answer
- 40 days
- 1. A can do as much work in 4 days as B can do in 5, and B can do as much work in 6 days as C in 7. In what time will C do a piece of work which A can do in a week ?
Options- A. 10 5/24 days
- B. 4 4/5 days
- C. 6 8/15 days
- D. 12 6/19 days Discuss
- 2. Ramesh and Rahman can do a work in 20 and 25 days respectively. After doing collectively 10 days of work, they leave the work due to illness and Suresh completes rest of the work in 3 days. How many days Suresh alone can take to complete the whole work ?
Options- A. 32 days
- B. 28 days
- C. 29 days
- D. 30 days Discuss
- 3. A and B can do a piece of work in 18 days, B and C in 24 days, A and C in 36 days. Working together they can do the work in
Options- A. 12 days
- B. 13 days
- C. 16 days
- D. 26 days Discuss
- 4. A canal of a village can be cleaned by 24 villagers in 12 days. The number of days in which 36 villagers can clean the canal is ?
Options- A. 18
- B. 8
- C. 72
- D. 16 Discuss
- 5. A can do 75% of a job in 18 days and B can do 25% of the job in 12 days. If they work on it together, in how many days can they do 75% of the job?
Options- A. 16
- B. 8
- C. 20
- D. 12 Discuss
- 6. An hour-long test has 60 problems. If a student completes 30 problems in 25 minutes, then the required seconds he has taken on average for computing each of the remaining problems is
Options- A. 70 seconds
- B. 50 seconds
- C. 40 seconds
- D. 30 seconds Discuss
- 7. Three electronic devices make a beep after every 48 sec, 72 sec and 108 sec respectively. They beeped together at 10 a.m. The time when they will next make a beep together at the earliest is
Options- A. 10:07:12 hrs
- B. 10:07:24 hrs
- C. 10:07:36 hrs
- D. 10:07:48 hrs Discuss
- 8. P can do (1/4)th of work in 10 days, Q can do 40% of work in 40 days and R can do (1/3)rd of work in 13 days. Who will complete the work first?
Options- A. P
- B. Q
- C. R
- D. Both P and R Discuss
- 9. Working 7 hours in a day, 4 men can do a piece of work in 8 days. Working 8 hours in a day, the required number of men to perform the same work in 4 days will be
Options- A. 8
- B. 4
- C. 7
- D. 9 Discuss
- 10. The time taken by 4 men to complete a job is double the time taken by 5 children to complete the same job. Each man is twice as fast as a woman. How long will 12 men, 10 children and 8 women take to complete a job, given that a child would finish the job in 20 days.
Options- A. 4 Days
- B. 3 Days
- C. 2 Days
- D. 1 Day Discuss
Time and Work problems
Search Results
Correct Answer: 10 5/24 days
Correct Answer: 30 days
Correct Answer: 16 days
Correct Answer: 8
Correct Answer: 12
Correct Answer: 70 seconds
Correct Answer: 10:07:12 hrs
Correct Answer: R
Correct Answer: 7
Correct Answer: 1 Day
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