- A2
- B3
- C1.5
- D4
Step-by-Step Solution
Twice the time upstream means downstream speed = 2 upstream speed: , so and km/h.
Answer: A) 2
A man can row at 6 km per hour in still water. It takes him twice as long to row a certain distance upstream as it does to row the same distance downstream. What is the speed of the stream, in km per hour?
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