Question: A pump can fill a tank with water in 2 hours. Because of a leak, it took 2 hours to fill the tank. The leak can drain all the water of the tank in:
[A].
7 hours
8 hours
14 hours
[A].
| 4 | 1 | hours |
| 3 |
[B].
[C].
[D].
Answer: Option D
Explanation:
| Work done by the leak in 1 hour = | 1 | – | 3 | = | 1 | . | ||
| 2 | 7 | 14 |
Leak will empty the tank in 14 hrs.