MCQOPTIONS
Saved Bookmarks
| 1. |
There are three pipes connected with a tank. The first pipe can fill 1/2 part of the tank in 1 h, second pipe can fill 1/3 part of the tank in 1 h. Third pipe is connected to empty the tank. After ope |
| A. | 3 h |
| B. | 4 h |
| C. | 5 h |
| D. | 6 h |
| Answer» C. 5 h | |