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

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