SOLUTION: a tank can be filled by one pipe in 20 minutes and it can be filled by a second pipe in 10 minutes. it can be drained by a third pipe in 12 minutes. if the tank is empty and the in
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-> SOLUTION: a tank can be filled by one pipe in 20 minutes and it can be filled by a second pipe in 10 minutes. it can be drained by a third pipe in 12 minutes. if the tank is empty and the in
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Question 791902: a tank can be filled by one pipe in 20 minutes and it can be filled by a second pipe in 10 minutes. it can be drained by a third pipe in 12 minutes. if the tank is empty and the inlet pipes and the drain are opened, in how many hours will the tank be filled? Answer by psbhowmick(878) (Show Source):
