Question
Ken and Zara left Town N for Town P at the same time. When Ken reached Town P in 5 hours, Zara had only completed 57 of the distance between the two towns. Zara's speed was 20 km/h slower than Ken. What was Ken's speed?
5 m

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Ken and Zara left Town N for Town P at the same time. When Ken reached Town P in 5 hours, Zara had only completed 57 of the distance between the two towns. Zara's speed was 20 km/h slower than Ken. What was Ken's speed?