SOLUTION: Kevin drove 320 miles to a mountain resort. His return trip took 20 minutes longer because his speed returning was 4 miles per hour slower than his speed going.
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Question 342235: Kevin drove 320 miles to a mountain resort. His return trip took 20 minutes longer because his speed returning was 4 miles per hour slower than his speed going. Answer by Fombitz(32388) (Show Source):
