SOLUTION: A motorboat traveled for 3 hr with a 2mph current. The return trip against the same current took 4 hr.
Find the speed of the motorboat in still water.
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Question 870769: A motorboat traveled for 3 hr with a 2mph current. The return trip against the same current took 4 hr.
Find the speed of the motorboat in still water.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
D = rt
(r + 2mph)3hr = (r-2mph)4hr
3r + 6 = 4r - 8
14mph = r
Checking...
16mph(3hr) = 12mph(4hr) = 48mi
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