Mathematics, 10.03.2020 04:55 foreverrocky12p2asun

It takes an older pump twice as long to drain a certain pool as it does a newer pump. Working together, it takes the two pumps hours to drain the pool. How long will it take the newer pump to drain the pool working alone? Do not do any rounding.

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It takes an older pump twice as long to drain a certain pool as it does a newer pump. Working togeth...