Question
PSLE
Zoe and Elsa started jogging from the same point of the 15 km track round a nature reserve. They started at the same time but in opposite directions. Zoe jogged past Elsa after 12 km. Both of them did not change their speeds throughout. Zoe took 15 min to complete one round. What was Elsa's jogging speed in m/min?
3 m

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PSLE
Zoe and Elsa started jogging from the same point of the 15 km track round a nature reserve. They started at the same time but in opposite directions. Zoe jogged past Elsa after 12 km. Both of them did not change their speeds throughout. Zoe took 15 min to complete one round. What was Elsa's jogging speed in m/min?