A, B and C start together from the same place to walk round a circular path of length 12 km. A walks at the rate of 4 km/h. B 3 km/h and C `(3)/(2)` km / h. They will meet together at the starting place at the end of.

Options

A. 10 hour
B. 12 hour
C. 15 hour
D. 24 hours

Answer

D