Taps with Work and time
If A and B are taps that fill a tank in 36 and 48 minute respectively. Both taps were to be opened, however after minutes B was switched off. If the tank was completely filled 24 minutes after both taps were opened, then find .
Note the tank was completely filled at the end.
The answer is 16.
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1 solution
Note that the Tap A was opened for full 24 minutes, this means the work done by A was 3 6 2 4 = 3 2 , this implies work left was 3 1 which was done only by B, hence the work done by B in 48 minutes is 1, then one-third work is done in 16 minutes. So the tap B was only opened for 16 minutes.