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Mathematics, 16.10.2021 17:00 tk1264

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? Express your answer as a reduced fraction.

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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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