Question
Ian jogged while Shiyun walked from the same place but in opposite directions along a straight road. After 2 hours, they were 13 km apart. Shiyun’s average speed was 1.4 km/h slower than Ian’s average speed. What was Shiyun’s average walking speed in km/h? Express your answer in decimal.
3 m

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Ian jogged while Shiyun walked from the same place but in opposite directions along a straight road. After 2 hours, they were 13 km apart. Shiyun’s average speed was 1.4 km/h slower than Ian’s average speed. What was Shiyun’s average walking speed in km/h? Express your answer in decimal.