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Charles and Paul enter the center point - comfort hill country run. Charles run at 8mi/h and Paul at 6mi/h.
if they start together, how long before Charles is 1/4 mi ahead of Paul?
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The rate of separation between them is 8 mph - 6 mph = 2 mph.
So, they will be at the distance of 1/4 miles at = of an hour, which is 7.5 minutes. ANSWER
Solved.