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A professional rower can paddle 320 miles upstream in 10 hours and downstream 320 miles in 5 hours. How fast is the current? (don't forget your units)
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A professional rower can paddle 320 miles upstream in 10 hours and downstream 320 miles in 5 hours. How fast is the current? (don't forget your units)

User WangYudong
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1 Answer

2 votes
speed upstream = 320/10 = 32 mph
speed downstream = 320/5 = 64 mph

So spedd of the current is 64 - 32 = 32 mph
User Ray Yun
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