SOLUTION: It takes a couple four hours to row 28 miles with the river current. If it takes them 7 hours to cover the same distance when rowing against the current, find the speed of the rive
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Question 270049: It takes a couple four hours to row 28 miles with the river current. If it takes them 7 hours to cover the same distance when rowing against the current, find the speed of the river current Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! = speed of boat in still water = speed of current
With the current:
Against the current:
----------------------
given: mi hrs hrs
-----------------------
(1)
and
(2)
----------------------
(1)
(1)
and
(2)
(2)
and
(2)
(1)
And, from (2),
The speed of the river current is 1.5 mi/hr
check:
and
OK
