MCQOPTIONS
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| 1. |
Two taps U and V together can fill a tank in 24 hours, V and W in 30 hours and U and W in 40 hours. If all the three taps are opened, then in how much time (in hours) the tank will be completely filled? |
| A. | 45 |
| B. | 20 |
| C. | 40 |
| D. | 54 |
| Answer» C. 40 | |