A motorboat in still water travels at a speed of 36 kmph . It goes 56 km upstream in 1 hour 45 minutes .The time taken by it to cover the same distance down the stream will be :

Options

A. 2 h, 25 min.
B. 3h
C. 1 h, 24 min.
D. 2 h,21 min.

Answer

C