A tank has an inlet and outlet pipe. The inlet pipe fills the tank completely in 2 hours when the outlet pipe is plugged. The outlet pipe enpties the tank completely in 6 hours when the inlet pipe is plugged.
If there is a leakage also which is capable of draining out the liquid from the tank at half of the rate of outlet pipe, then bat is the time taken to fill the empty tank when both the pipes are opened?

Options

A. 3 hours
B. `3(2)/(3)` hours
C. 4 hours
D. none of these

Answer

C