Question

Jasprit can row a boat 65 km upstream and 130 km downstream in 23 hours, whereas can row a boat 45 km upstream and 104 km downstream in 17 hours Find the speed of boat in still water and speed of stream.​

Answer 1

Answer:

Upstream, U = Speed of boat – speed of stream

Downstream, D = Speed of boat + speed of stream

65 + 130 = 23

U D

45 + 104 = 17

U D

On solving the above two equations, we will get

U = Speed of boat – speed of stream = 5

D = Speed of boat + speed of stream = 13

Thus, Speed of boat = 9 and speed of stream = 4

Hence, option C is correct.