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- Question
A can do a work in 21 days and B in 42 days. If they work on it together for 7 days, then what fraction of work is left?
Options- A. 1/3
- B. 1/4
- C. 2/3
- D. 1/2
- Correct Answer
- 1/2
- 1. A and B together can complete a piece of work in 12 days. They worked together for 5 days and then A alone finished the rest work in 14 days. A alone can complete the work in _____.
Options- A. 24 days
- B. 22 days
- C. 20 days
- D. 18 days Discuss
- 2. 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
- 3. 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
- 4. 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
- 5. 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
- 6. A can paint a house in 55 days and B can do it in 66 days. Along with C, they did the job in 12 days only. Then, C alone can do the job in how many days?
Options- A. 24
- B. 44
- C. 33
- D. 20 Discuss
- 7. A, B and C can together do a job in 9 days. C alone can do the job in 36 days. In how many days can A and B do 50% of the job working together?
Options- A. 6
- B. 12
- C. 9
- D. 15 Discuss
- 8. Working alone A can do the task in 27 hours and B can do it in 54 hours. Find C's share (in Rs) if A, B and C get paid Rs 4,320 for completing a task in 12 hours on which they worked together.
Options- A. 1440
- B. 960
- C. 1920
- D. 1280 Discuss
- 9. If A had worked alone he would have taken 63 hours to do the task. What is B's share, if A and B work together on a task finishing it in 36 hours and they get paid Rs 5,950 for it?
Options- A. 3400
- B. 3600
- C. 2550
- D. 2750 Discuss
- 10. Working together A, B and C can complete a task in 12 days. A and B can do the task in 55 days and 66 days respectively if they worked alone. In how many days can C do the task if he worked alone?
Options- A. 22
- B. 44
- C. 20
- D. 40 Discuss
Time and Work problems
Search Results
Correct Answer: 24 days
Correct Answer: 1 Day
Correct Answer: 7
Correct Answer: R
Correct Answer: 10:07:12 hrs
Correct Answer: 20
Correct Answer: 6
Correct Answer: 1440
Correct Answer: 2550
Correct Answer: 20
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