An observer on ground sees a boat cross a river of width 800 m perpendicular to its stream in 200 seconds. He also finds a man on a raft floating at speed of 3 m/s with river. The distance travelled by boat as seen by man on the raft in crossing the river is -

Options

A. 800 m
B. 1000 m
C. 1200 m
D. 1600 m

Answer

B