SOLUTION: A motorboat can go 15 miles downstream and back in 4 hours. Traveling at half speed, it would require 10 hours to make the trip. Find the rate of the current and the rate of the bo
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Question 483600: A motorboat can go 15 miles downstream and back in 4 hours. Traveling at half speed, it would require 10 hours to make the trip. Find the rate of the current and the rate of the boat at high speed. Answer by jorel1380(3719) (Show Source):
You can put this solution on YOUR website! 30 miles/4 hours=7.5 mph
30 miles/10 hours=3 mph
7.5+3/2=5.25
7.5-5.25=5.25-3=2.25 mph
The speed of the boat at high speed is 5.25 mph. The speed of the current is 2.25 mph..
