<PRE><B>Question 173454</B>
A motorboat travels 325km in 5 hours going upstream and 534 km in 6 hours going downstream. What is the speed of the boat in still water and what is the speed of the current?
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It is not still water; it is moving water, or current.
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Upstream DATA:
distance = 325 km ; time = 5 hrs; rate = d/t = 325/5 = 65 km/h
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Downstream DATA;
distance = 534 km ; time = 6 hrs ; rate = d/t = 534/6 = 267/3  = 89 km/h
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EQUATIONS: 
b + c = 89
b - c = 65
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Add to solve for b: (b is the speed of the boat in still water)
2b = 154 
b = 77 km/h (speed of the boat in still water)
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If b+c = 89 then c = 12 km/h (speed of the current)
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Cheers,
Stan H.  </PRE>