Question
Neave jogged while Xuan walked from the same place but in opposite directions along a straight road. After 4 hours, they were 26 km apart. Xuan’s average speed was 2.1 km/h slower than Neave’s average speed. What was Xuan’s average walking speed in km/h? Express your answer in decimal.
3 m

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Neave jogged while Xuan walked from the same place but in opposite directions along a straight road. After 4 hours, they were 26 km apart. Xuan’s average speed was 2.1 km/h slower than Neave’s average speed. What was Xuan’s average walking speed in km/h? Express your answer in decimal.