Question
Billy jogged while Abi walked from the same place but in opposite directions along a straight road. After 5 hours, they were 28 km apart. Abi’s average speed was 1.1 km/h slower than Billy’s average speed. What was Abi’s average walking speed in km/h? Express your answer in decimal.
3 m

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Billy jogged while Abi walked from the same place but in opposite directions along a straight road. After 5 hours, they were 28 km apart. Abi’s average speed was 1.1 km/h slower than Billy’s average speed. What was Abi’s average walking speed in km/h? Express your answer in decimal.