SOLUTION: A tank can be filled by a certain pipe in 18 hours. Five hours after this pipe is opened, it is supplemented by a smaller pipe which, by itself, could fill the tank in 24 hours. F
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-> SOLUTION: A tank can be filled by a certain pipe in 18 hours. Five hours after this pipe is opened, it is supplemented by a smaller pipe which, by itself, could fill the tank in 24 hours. F
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Question 910669: A tank can be filled by a certain pipe in 18 hours. Five hours after this pipe is opened, it is supplemented by a smaller pipe which, by itself, could fill the tank in 24 hours. Find the total time, measured from the opening of the larger pipe, to fill the tank.
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