Question
Lucy and Christian started driving from the same house but in opposite directions along a straight road. After driving for 2 hours, they were 300 km apart. Lucy's average speed was 70 km/h. What was Christian's average speed?
2 m

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Lucy and Christian started driving from the same house but in opposite directions along a straight road. After driving for 2 hours, they were 300 km apart. Lucy's average speed was 70 km/h. What was Christian's average speed?