Question
Tommy and Jean left Town Z for Town A at the same time. When Tommy reached Town A in 4 hours, Jean had only completed 58 of the distance between the two towns. Jean's speed was 21 km/h slower than Tommy. What was Tommy's speed?
5 m

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Tommy and Jean left Town Z for Town A at the same time. When Tommy reached Town A in 4 hours, Jean had only completed 58 of the distance between the two towns. Jean's speed was 21 km/h slower than Tommy. What was Tommy's speed?