Question
Ken and Betty left Town S for Town T at the same time. When Ken reached Town T in 5 hours, Betty had only completed 57 of the distance between the two towns. Betty's speed was 28 km/h slower than Ken. What was Ken's speed?
5 m

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Ken and Betty left Town S for Town T at the same time. When Ken reached Town T in 5 hours, Betty had only completed 57 of the distance between the two towns. Betty's speed was 28 km/h slower than Ken. What was Ken's speed?