A man can row at 6 km/h in still water. It takes him twice as long to row a certain distance upstream as it does to row the same distance downstream. Find the speed of the stream (in km/h).

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Accepted Answer

2. Since time upstream is twice that downstream, downstream speed = 2 x upstream speed: 6 + s = 2(6 - s), giving 3s = 6, s = 2 km/h.

A man can row at 6 km/h in still water. It takes him twice as long to row a certain distance upstream as it does to row the same distance downstream. Find the speed of the stream (in km/h).

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