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Mathematics, 17.10.2019 22:20 F00Dislife
Awinery has a vat with two pipes leading to it. the inlet pipe can fill the vat in 3 hours, while the outlet pipe can empty it in 7 hours. how long will it take to fill the vat if both pipes are left open
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Awinery has a vat with two pipes leading to it. the inlet pipe can fill the vat in 3 hours, while th...
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