SOLUTION: An elevated concrete tank is filled through its inlet pipe and then is emptied through its outlet pipe in a total time of 9 hours. If water enters through the inlet pipe and is sim
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Question 1196865: An elevated concrete tank is filled through its inlet pipe and then is emptied through its outlet pipe in a total time of 9 hours. If water enters through the inlet pipe and is simultaneously allowed to leave through the outlet pipe, the tank is filled in 20 hours. How long will it take to fill the tank if the outlet is closed? Answer by ikleyn(52772) (Show Source):
