SOLUTION: a boat can go 20km down stream in 2h. the return trip takes 5h. what would the speed of the boat be if there were no current?

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Question 401952: a boat can go 20km down stream in 2h. the return trip takes 5h. what would the speed of the boat be if there were no current?
Answer by sofiyac(983) About Me  (Show Source):
You can put this solution on YOUR website!
So down the stream the speed is 20/2=10 km per hour
up the stream the speed is 20/5=4 km per hour
You didn't say which speed you needed or if you needed average