A tank can be filled by pipe A in 5 hours and emptied by pipe B in 8 hours respectively. How much time will it take for the tank to be half full?

A

$$3\frac{1}{3}$$h

B

$$12\frac{1}{3}$$h

C

$$8\frac{2}{3}$$h

D

$$6\frac{2}{3}$$h