One tap can fill a tank in 3 hours and a leak can empty the tank in 5 hours. If the tap and the leak (which was half closed) were left open, how long will it take for the tank to fill?

One tap can fill a tank in 3 hours and a leak can empty the tank in 5

1.	One tap can fill a tank in 3 hours and a leak can empty the tank in 5 hours. If the tap and the leak (which was half closed) were left open, how long will it take for the tank to fill?
A.	\(4\frac{2}{7}\;hours\)
B.	\(7\frac{1}{2}\;hours\)
C.	\(5\frac{1}{3}hours\;\)
D.	\(6\frac{2}{3}hours\;\)
Answer» B. \(7\frac{1}{2}\;hours\)

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One tap can fill a tank in 3 hours and a leak can empty the tank in 5 hours. If the tap and the leak (which was half closed) were left open, how long will it take for the tank to fill?

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