Question
PSLE
Penny and Riley started jogging from the same point of the 12 km track round a housing estate. They started at the same time but in opposite directions. Penny jogged past Riley after 10 km. Both of them did not change their speeds throughout. Penny took 15 min to complete one round. What was Riley's jogging speed in m/min?
3 m

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PSLE
Penny and Riley started jogging from the same point of the 12 km track round a housing estate. They started at the same time but in opposite directions. Penny jogged past Riley after 10 km. Both of them did not change their speeds throughout. Penny took 15 min to complete one round. What was Riley's jogging speed in m/min?