Question
PSLE
Ava 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. Ava jogged past Ella after 12 km. Both of them did not change their speeds throughout. Ava took 15 min to complete one round. What was Ella's jogging speed in m/min?
3 m

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PSLE
Ava 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. Ava jogged past Ella after 12 km. Both of them did not change their speeds throughout. Ava took 15 min to complete one round. What was Ella's jogging speed in m/min?