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Randy left town on his bicycle, traveling at an average of 16 miles per hour. Four hours later, his older brother, Jimmy, went looking for Randy on his motorcycle. Jimmy traveled at an average of 48 miles per hour. How long would it take Jimmy to catch up to Randy?

 Apr 20, 2020
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Randy has a head start    16 m/hr x 4 hr = 64 miles

 

Jimmy is going   48-16 m/hr faster = 32 m/hr faster

 

Jimmy will cover the 64 mile headstart and catch Randy after   64 m / 32/mhr = 2 hours

 Apr 20, 2020

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