SOLUTION: A tank filled with 2 pipes. The first pipe can fill the tank in 10hrs. But after it has been open for 3 and 1/2 hours, the second pipe is opened and the tank is filled up in 4 hour
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-> SOLUTION: A tank filled with 2 pipes. The first pipe can fill the tank in 10hrs. But after it has been open for 3 and 1/2 hours, the second pipe is opened and the tank is filled up in 4 hour
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Question 818830: A tank filled with 2 pipes. The first pipe can fill the tank in 10hrs. But after it has been open for 3 and 1/2 hours, the second pipe is opened and the tank is filled up in 4 hours more. How long will it take the second pipe alone to fill the tank? The two pipes have different diameters. Answer by richwmiller(17219) (Show Source):
