Tap A can fill a tank in 5hr and Tap B can drain the tank in 10hr. Find the time taken to fill the tank when both Taps are opened? - Study24x7
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Tap A can fill a tank in 5hr and Tap B can drain the tank in 10hr. Find the time taken to fill the tank when both Taps are opened?

A

8hr

B

9hr

C

10hr

D

11hr

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