Question
Vincent and Marion left Town E for Town F at the same time. When Vincent reached Town F in 3 hours, Marion had only completed 47 of the distance between the two towns. Marion's speed was 21 km/h slower than Vincent. What was Vincent's speed?
5 m

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Vincent and Marion left Town E for Town F at the same time. When Vincent reached Town F in 3 hours, Marion had only completed 47 of the distance between the two towns. Marion's speed was 21 km/h slower than Vincent. What was Vincent's speed?