Pipe A can fill a tank in 45 hrs and pipe B can fill it in 36 hrs. If both the pipes are opened in the empty tank. In how many hours will it be full?

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Accepted Answer

Part filled A in 1 hr= (1/45) Part filled B in 1 hr= (1/36) Part filled by (A+B) together in 1 hr=(1/45)+(1/36)=1/20 So, The tank will be full in 20 hr.

Pipe A can fill a tank in 45 hrs and pipe B can fill it in 36 hrs. If both the pipes are opened in the empty tank. In how many hours will it be full?

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