Question
Gabriel jogged while Sarah walked from the same place but in opposite directions along a straight road. After 5 hours, they were 31 km apart. Gabriel’s average speed was 1.2 km/h faster than Sarah’s average speed. What was Sarah’s average walking speed in km/h? Express your answer in decimal.
3 m

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Gabriel jogged while Sarah walked from the same place but in opposite directions along a straight road. After 5 hours, they were 31 km apart. Gabriel’s average speed was 1.2 km/h faster than Sarah’s average speed. What was Sarah’s average walking speed in km/h? Express your answer in decimal.