SOLUTION: Paula leaves home driving 40 miles per hour. One hour later, her brother Dan leaves home driving in the same direction at the speed of 50 miles per hour. How long will it take Dan

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Question 361707: Paula leaves home driving 40 miles per hour. One hour later, her brother Dan leaves home driving in the same direction at the speed of 50 miles per hour. How long will it take Dan to catch up to Paula?
Found 2 solutions by scott8148, jdo1005:
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
Paula's one hour head start is a distance of 40 miles (she drives 40 mph)

Dan "catches up" at a rate of 10 mph (50 - 40)

so it takes Dan 4 hr (40 / 10) to catch Paula

Answer by jdo1005(1) About Me  (Show Source):
You can put this solution on YOUR website!
40 mi lead
overtake speed 50-40=10 mph
40/10=4 hrs