MCQOPTIONS
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| 1. |
Two taps can fill a tank in 2 hours and 3 hours respectively. If both the taps are opened simultaneously, how much time will it take to fill the tank? |
| A. | 1 h |
| B. | 9 h |
| C. | 1 h 12 min |
| D. | 3h |
| Answer» D. 3h | |