Question
PSLE
Jean and Risa started jogging from the same place in opposite directions along a straight path. They jogged for 40 minutes. At the end of the jog, they were 10 km apart. Jean's average speed was 6 km/h. What was Risa's average speed in km/h?
2 m

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PSLE
Jean and Risa started jogging from the same place in opposite directions along a straight path. They jogged for 40 minutes. At the end of the jog, they were 10 km apart. Jean's average speed was 6 km/h. What was Risa's average speed in km/h?