SOLUTION: Paddled For 3 Hours With A 7 Km/h Current To Reach A Campsite. The Return Trip Against The Current Took 10 Hours. Find The Speed Of The Boat In Still Water?
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Question 393571: Paddled For 3 Hours With A 7 Km/h Current To Reach A Campsite. The Return Trip Against The Current Took 10 Hours. Find The Speed Of The Boat In Still Water? Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! Paddled For 3 Hours With A 7 Km/h Current To Reach A Campsite. The Return Trip Against The Current Took 10 Hours. Find The Speed Of The Boat In Still Water?
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speed of boat in still water =x
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with current speed = x+7: time = 3 hours
against , speed = x-7: time = 10 hours
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distance = speed * time
3(x+7)=10(x-7)
3x+21=10x-70
7x=91
x=13 km/h speed of boat
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m.ananth@hotmail.ca
