Mathematics
Mathematics, 03.06.2021 23:00, maddy7779

12 water pumps can empty a water tank in 20 minutes. If 2 pumps are out of order, how long will the remaining pumps take
to make the tank empty?

answer
Answers: 3

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12 water pumps can empty a water tank in 20 minutes. If 2 pumps are out of order, how long will the...

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