Roy leaves for work at 7 A.M. traveling 40kph. His sister Susan finds that he has forgotten his briefcase, so she leaves at 7:05 A

Roy leaves for work at 7 A.M. traveling 40kph. His sister Susan finds that he has forgotten his briefcase, so she leaves at 7:05 A.M. chasing him at 50kph. At what time will Susan catch up with Roy
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  1. Answer:

    Time interval from 7:05 AM and 7:00 AM is 5 minutes which is 1%2F12 of an hour. RT=D relates rate, time, distance for uniform travel rates.

    Variable assignments are implied in this table.

    speed time distance

    ROY 40 t+1/12 d

    SUE 50 t d

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