trevinojazzy8625
26.09.2019 •
Mathematics
Awinery has a vat with two pipes leading to it. the inlet pipe can fill the vat in 44 ? hours, while the outlet pipe can empty it in 77 hours. how long will it take to fill the vat if both pipes are left? open?
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Ответ:
Rate of emptying = 1/77 = 1/77 * 44/44 =44/3388
Combined Rate of Fill-up = 77/3388 - 44/3388 = 33/3388 = 3/308
Time for combined fill-up = 308/3 = 102.6667 hours = 102 hours and 40 minutes
Ответ: