1. | 20 men working 8 hours per day can complete a piece of work in 21 days. How many hours per day must 48 men work to complete the same job in 7 days ? | |
2. | If 20 women can lay a road of length 100m in 10 days. Then 10 women can lay the same road of length 50 m in ? | |
3. | A father can do a job as fast as his two sons working together. If one son does the job in 3 hours and the other in 6 hours, the number of hours taken by the father, to do the job alone is ? | |
4. | If 1 man or 2 women or 3 boys can do a piece of work in 44 days, then the same piece of work will be done by 1 man, 1 woman and 1 boy in ? | |
5. | A can do a work in 10 days and B in 20 days. If they together work on it for 5 days, then the fraction of the work that is left is ? | |
6. | Kamal can do a work in 15 days. Bimal is 50 per cent more efficient than Kamal in doing the work. In how many days will Bimal do that work ? | |
7. | If 10 men can do a piece of work in 12 days, the time taken by 12 men to do the same piece of work will be ? | |
8. | If 80 persons can finish a work within 16 days by working 6 hours a day, the number of hours a day, should 64 persons work to finish that very job within 15 days is ? | |
9. | A and B were assigned to do a job for an amount of 1,200. A alone can do it in 15 days, while B can do it in 12 days. With the help of C, they can finish in 5 days. The share of amount that C earns is ? | |
10. | Twenty women together can complete a work in 16 days. 16 men together can complete the same work in 15 days. The ratio of the working capacity of a man to that of a woman is ? | |