Mathematics, 30.11.2019 06:31, katherineweightman

Pump a can fill a tank of water in 5 hours. pump b can fill the same tank in 8 hours. how long does it take the two pumps working together to fill the tank? (round your answer to the nearest minute).

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Pump a can fill a tank of water in 5 hours. pump b can fill the same tank in 8 hours. how long does...