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Mathematics, 15.04.2020 02:53 dondre54
There is a reservoir with five channels bringing in water. If only the first channel is open, the reservoir can be filled in13 of a day. The second channel by itself will fill the reservoir in 1 day, the third channel in212 days, the fourth one in 3 days, and the fifth one in 5 days. If all the channels are open together, how long will it take to fill the reservoir?
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