Question
Sam jogged while Anna walked from the same place but in opposite directions along a straight road. After 5 hours, they were 31 km apart. Sam’s average speed was 1.5 km/h faster than Anna’s average speed. What was Anna’s average walking speed in km/h? Express your answer in decimal.
3 m

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Sam jogged while Anna walked from the same place but in opposite directions along a straight road. After 5 hours, they were 31 km apart. Sam’s average speed was 1.5 km/h faster than Anna’s average speed. What was Anna’s average walking speed in km/h? Express your answer in decimal.