Question
Mark took 6 hours to drive from Point C to Point D while Oscar took 4 hours to drive from Point D to Point C. When they met each other, they were 60 km away from the midpoint of Point C and Point D. What was Mark's speed?
3 m

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Mark took 6 hours to drive from Point C to Point D while Oscar took 4 hours to drive from Point D to Point C. When they met each other, they were 60 km away from the midpoint of Point C and Point D. What was Mark's speed?