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Frank started out in his car traveling 45 mph. When Frank was 1/3 miles away, Daniel started out from the same point at 50 mph to catch up with Frank. How long will it take Daniel to catch up with Frank?

 Aug 11, 2021
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Daniel is traveling 5 m/hr faster and will take   1/3 m / 5 m/hr   to close the 1/3 mile gap =  1/15 hr = 4 minutes

 Aug 11, 2021

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