Question
PSLE
Kay and Ella started jogging from the same point of the 15 km track round a park. They started at the same time but in opposite directions. Kay jogged past Ella after 10 km. Both of them did not change their speeds throughout. Kay took 30 min to complete one round. What was Ella's jogging speed in m/min?
3 m

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PSLE
Kay and Ella started jogging from the same point of the 15 km track round a park. They started at the same time but in opposite directions. Kay jogged past Ella after 10 km. Both of them did not change their speeds throughout. Kay took 30 min to complete one round. What was Ella's jogging speed in m/min?