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A motorboat takes 3 hours to travel 108km going upstream. The return trip takes 2 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?
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A motorboat takes 3 hours to travel 108km going upstream. The return trip takes 2 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?

User Renford
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1 Answer

4 votes
vb + vs = 108/3 = 36

vb - vs = 108/2 =54

2vb = 90
vb = 45 . . . motorboat speed

rate of current = 45 - 36 = 9

Hope this helps




User Jay Rajput
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