Question
PSLE
Fiona 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. Fiona's average speed was 7 km/h. What was Risa's average speed in km/h? Express your answer in mixed number.
2 m

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PSLE
Fiona 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. Fiona's average speed was 7 km/h. What was Risa's average speed in km/h? Express your answer in mixed number.