MCQOPTIONS
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| 1. |
Two pipes X andY can fill a cistern in 24 min. and 32 min. respectively.If both the pipes are opened together, then after how much time should Y be closed so that the tank is full in 18 minutes? |
| A. | 8mints |
| B. | 5mints |
| C. | 10mints |
| D. | None of these |
| Answer» B. 5mints | |