- A1.5
- B4
- C3
- D2
Step-by-Step Solution
If upstream time is twice the downstream time, downstream speed = 2 × upstream speed: (6 + s) = 2(6 − s), giving 3s = 6, s = 2.
Answer: D) 2
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 downstream. Find the speed of the stream (in km/h).
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