A man can swim at the rate of 12 km/hr in still water and rate of flow of river is 4 km/hr. A wooden log started to flow with the speed of river and man also started to swim downstream from same place and at same time. Man after covering 100 km downstream, returns and started to swim upstream. Man meet the wooden log at a distance of x from starting point Find x.

Options

A. A)50 km
B. B)60 km
C. C)80 km
D. D)85 km

Answer

A