Question
Sean took 9 hours to drive from Point T to Point U while Ivan took 6 hours to drive from Point U to Point T. When they met each other, they were 57 km away from the midpoint of Point T and Point U. What was Ivan's speed?
3 m

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Sean took 9 hours to drive from Point T to Point U while Ivan took 6 hours to drive from Point U to Point T. When they met each other, they were 57 km away from the midpoint of Point T and Point U. What was Ivan's speed?