SOLUTION: A boat travels 105 km downstream in 5 hours. The return trip upstream takes 7 hours. Find the speed of the boat in still water and the speed of the current.
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Question 1048536: A boat travels 105 km downstream in 5 hours. The return trip upstream takes 7 hours. Find the speed of the boat in still water and the speed of the current.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
r + c = 21mph
r - c = 15mph
2r = 21 + 15
2r = 36
r = 18mph
c = 3mph
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