Question
Ivan jogged while Tammy walked from the same place but in opposite directions along a straight road. After 5 hours, they were 30 km apart. Tammy’s average speed was 1.6 km/h slower than Ivan’s average speed. What was Tammy’s average walking speed in km/h? Express your answer in decimal.
3 m

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Ivan jogged while Tammy walked from the same place but in opposite directions along a straight road. After 5 hours, they were 30 km apart. Tammy’s average speed was 1.6 km/h slower than Ivan’s average speed. What was Tammy’s average walking speed in km/h? Express your answer in decimal.