Mathematics, 06.04.2021 17:30 emmalybrown
An inlet pipe can fill a water tank in 10 hours, while an outlet pipe can empty the same tank in 15 hours. By mistake both pipes are left open. How long will it take to fill the water tank with both pipes open?
Answers: 3
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An inlet pipe can fill a water tank in 10 hours, while an outlet pipe can empty the same tank in 15...
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