A pipe can fill a tank in 4 hours and a leak at the bottom can empty that full tank in 6 hours. If after the tank is \(\frac{1}{3}\) full, the leak is completely closed, how much time from beginning will it take for the tank to get filled completely?

A pipe can fill a tank in 4 hours and a leak at the bottom can empty t

1.	A pipe can fill a tank in 4 hours and a leak at the bottom can empty that full tank in 6 hours. If after the tank is \(\frac{1}{3}\) full, the leak is completely closed, how much time from beginning will it take for the tank to get filled completely?
A.	12 hours
B.	4 hours
C.	9 hours
D.	\(\frac{{20}}{3}\) hours
Answer» E.

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A pipe can fill a tank in 4 hours and a leak at the bottom can empty that full tank in 6 hours. If after the tank is \(\frac{1}{3}\) full, the leak is completely closed, how much time from beginning will it take for the tank to get filled completely?

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