1. | 3 pumps working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day ? | |
2. | If 18 people bind 900 books in 10 days , How many people will be required to bind 660 books in 12 days ? | |
3. | 4 person can weave 4 mats in 4 days. At the same rate, how many mats would be woven by 8 person in 8 days ? | |
4. | If the price of 23 toys is 276, then what will the price of 12 toys ? | |
5. | If 16 men working 7 hours day can plough a field in 4l days, in how many days will 14 men working 12 hours a clay plough the same field ? | |
6. | 36 men can complete a piece of work in 18 days. In how many days will 27 men complete the same work ? | |
7. | 39 persons can repair a road in 12 days, working 5 hours a day. In how many days will 30 persons, working 6 hours a day, complete the work ? | |
8. | A certain number of men can finish a piece of work in 100 days. If there were 10 men less, it would take 10 days more for the work to be finished. How many men were there originally ? | |