Question
Pierre took 10 hours to drive from Point B to Point C while Mark took 6 hours to drive from Point C to Point B. When they met each other, they were 45 km away from the midpoint of Point B and Point C. What was Pierre's speed?
3 m

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Pierre took 10 hours to drive from Point B to Point C while Mark took 6 hours to drive from Point C to Point B. When they met each other, they were 45 km away from the midpoint of Point B and Point C. What was Pierre's speed?