Question
Mark and Olivia left Town X for Town Y at the same time. When Mark reached Town Y in 5 hours, Olivia had only completed 38 of the distance between the two towns. Olivia's speed was 30 km/h slower than Mark. What was Mark's speed?
5 m

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Mark and Olivia left Town X for Town Y at the same time. When Mark reached Town Y in 5 hours, Olivia had only completed 38 of the distance between the two towns. Olivia's speed was 30 km/h slower than Mark. What was Mark's speed?