Mathematics, 21.04.2020 16:59 brad59

An inlet pipe on a swimming pool can be used to fill the pool in 2020 hours. The drain pipe can be used to empty the pool in 2121 hours. If the pool is 2323 filled and then the inlet pipe and drain pipe are opened, how long from that time will it take to fill the pool

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An inlet pipe on a swimming pool can be used to fill the pool in 2020 hours. The drain pipe can be u...