Curioustab

Ashutosh can row 24 km/h in still water. It takes him twice as long to row up as to row down the river. Find the rate of stream.?

4 km/h
18 km/h
8 km/h
15 km/h

Correct Answer: 8 km/h

Explanation:

Let rate of stream be 'a' km/h.
According to the question.
24 + a = 2(24 - a)
⇒ 24 + a = 48 - 2a
⇒ 3a = 48 - 24 = 24
∴ a = 24/3 = 8 km/h

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