SOLUTION: a boat travelling upstream goes 120 miles in 6 hours. If the return trip takes 4 hours what is speed in miles per hour of the boat in still water?

Question 972840: a boat travelling upstream goes 120 miles in 6 hours. If the return trip takes 4 hours what is speed in miles per hour of the boat in still water?
Answer by anand429(138) (Show Source): You can put this solution on YOUR website!
Let speed of boat in still water = x
and speed of stream = y
Speed upstream = mph
Speed downstream = mph
So adding both equations,

=> mph
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