SOLUTION: A power boat takes 30 minutes to travel 10 miles downstream. The return trip takes 50 minutes. What is the speed of the current?

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Question 932120: A power boat takes 30 minutes to travel 10 miles
downstream. The return trip takes 50 minutes. What is the speed of the current?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
r + c = 20mph 10mi%2F%28.5hr%29
r - c = 12mph 10mi%2F%2850%2F60%29
2r = 32
r = 16mph
c = 4mph 20-16