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August 21, 2014

August 21, 2014

Posted by **sara** on Sunday, September 5, 2010 at 4:50am.

- algebra -
**Andrew**, Sunday, September 5, 2010 at 5:21amlook at the algebraic equation that u posted previously. try to form an equation similar to that.

- algebra -
**drwls**, Sunday, September 5, 2010 at 5:30amThere is something inconsistent with the way this problem is stated. The ratio of upstream to downstream travel time should be independent of how far one travels. The second sentence is unecessary and inconsistent.

Let V be the speed in still water and v be the stream velocity

16/(V-v) = 6

24/(V+v) = 6

16 = 6V - 6v

24 = 6V + 6v

40 = 12V

V = 3.33 km/h

6v = 24 - 20 = 4 km/h

v = 0.67 km/h

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