A man can row 9 km/h in still water. If the river is running at 4 km/h, it takes 8 hours more in upstream than to go downstream for the same distance. How far is the place?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 65 km.
Let the distance be D
Downstream speed = 9 + 4 = 13 km/hr
Upstream speed = 9 - 4 = 5 km/hr
According to the question,
⇒ = 8
⇒ = 8
⇒ D = 65 km