A boat takes 19 h for travelling downstream from point A to point B and coming back to a point C midway between A and B. If the velocity of the stream is 4 km/h and the speed of the boat in still water is 14 km/h, what is the distance between A and B?

Options

A. 200 km
B. 180 km
C. 160 km
D. 220 km

Answer

B