Question
Luke and Anna left Town N for Town P at the same time. When Luke reached Town P in 4 hours, Anna had only completed 57 of the distance between the two towns. Anna's speed was 28 km/h slower than Luke. What was Luke's speed?
5 m

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Luke and Anna left Town N for Town P at the same time. When Luke reached Town P in 4 hours, Anna had only completed 57 of the distance between the two towns. Anna's speed was 28 km/h slower than Luke. What was Luke's speed?