Question
Luke jogged while Min walked from the same place but in opposite directions along a straight road. After 3 hours, they were 24 km apart. Luke’s average speed was 2.1 km/h faster than Min’s average speed. What was Min’s average walking speed in km/h? Express your answer in decimal.
3 m

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Luke jogged while Min walked from the same place but in opposite directions along a straight road. After 3 hours, they were 24 km apart. Luke’s average speed was 2.1 km/h faster than Min’s average speed. What was Min’s average walking speed in km/h? Express your answer in decimal.