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Mathematics, 12.07.2019 12:10, ridgewoodschool88
One inlet pipe can fill an empty pool in 12 hours, and a drain can empty the pool in 20 hours. how long will it take the pipe to fill the pool if the drain is left open?
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Answers: 1
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One inlet pipe can fill an empty pool in 12 hours, and a drain can empty the pool in 20 hours. how l...
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