Mathematics, 01.12.2021 04:10 leezas1101
It takes an older pump 4 times as long to drain a certain pool as it does a newer pump. Working together, it takes the two pumps 3 hours to drain the pool. How long will it take the newer pump to drain the pool working alone?
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It takes an older pump 4 times as long to drain a certain pool as it does a newer pump. Working toge...
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