Mathematics, 15.07.2019 13:00 k3ydag0at

An inlet pipe on a swimming pool can be used to fill the pool in 38 hours. the drain pipe can be used to empty the pool in 40 hours. if the pool is 14 filled and then the inlet pipe and drain pipe are opened, how long from that time will it take to fill the pool? answer

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An inlet pipe on a swimming pool can be used to fill the pool in 38 hours. the drain pipe can be use...