SOLUTION: Laverne's Mercruiser travels 2 km/h in still water. she motors 140km downstream in the same time it takes to go 1km upstream. What is the speed of the river?
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Question 43353: Laverne's Mercruiser travels 2 km/h in still water. she motors 140km downstream in the same time it takes to go 1km upstream. What is the speed of the river?
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Answer by Paul(988) (Show Source): You can put this solution on YOUR website!
Let x be the speed of the current
EQUATION:
2+x=140(2-x)
2+x=280-140x
141x=278
x=1.9
Hence, the speed of the current is 1.9km
Paul.
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