Question
Brandon jogged while Fanny walked from the same place but in opposite directions along a straight road. After 2 hours, they were 15 km apart. Brandon’s average speed was 2.1 km/h faster than Fanny’s average speed. What was Fanny’s average walking speed in km/h? Express your answer in decimal.
3 m

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Brandon jogged while Fanny walked from the same place but in opposite directions along a straight road. After 2 hours, they were 15 km apart. Brandon’s average speed was 2.1 km/h faster than Fanny’s average speed. What was Fanny’s average walking speed in km/h? Express your answer in decimal.