Question
Henry and Kaylee started driving from the same flat but in opposite directions along a straight road. After driving for 3 hours, they were 450 km apart. Henry's average speed was 80 km/h. What was Kaylee's average speed?
2 m

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Henry and Kaylee started driving from the same flat but in opposite directions along a straight road. After driving for 3 hours, they were 450 km apart. Henry's average speed was 80 km/h. What was Kaylee's average speed?