<PRE><B>Question 1039197</B>
W=speed in still water mi/hr
C=speed of current
2(W+C)=miles paddled in 2 hours
that equals 3(W-C) coming back.
Distributing,
2W+2C=3W-3C
W=5C
but C=W-2
distributing again
W=5W-10
-4W=-10
W=2.5 mph
C=0.5 mph;W=5C and W=C-2
3.0 mph together, 2 mph against.
In 2 hours, goes 6 miles downstream
In 3 hours, goes 6 miles upstream
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