<PRE><B>Question 1051683</B>
 It took a boat 2 hours to reach town A going upstream. The way back 1 hour and 20 minutes. What is the speed of the boat in still water if the speed of the stream is 3 MPH
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Upstream DATA:
time = 2 hrs ; rate = b-3 mph ; dist = 2(b-3) = 2b-6 miles
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Downstream DATA:
time = (4/3) hrs ; rate = b+3 mph ; dist = (4/3)(b+3) = (4/3)b + 4 miles
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Equation:
dist up = dist down
2b-6 = (4/3)b + 4
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(2/3)b = 10
b = 15 mph (speed of the boat in still water)
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Cheers,
Stan H.
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