SOLUTION: A cruise boat travels 12 miles downstream in 3 hours and returns upstream in 6 hours. Find the rate of the stream.

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Question 694639: A cruise boat travels 12 miles downstream in 3 hours and returns upstream in 6 hours. Find the rate of the stream.
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
Hint:


Let x = speed of boat (without the stream) and c = speed of the current of the stream


Downstream:

d = rt

12 = (x - c)*3

Upstream:

d = rt

12 = (x + c)*6
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