Question
PSLE
Jane and Sonia started jogging from the same point of the 15 km track round a lake. They started at the same time but in opposite directions. Jane jogged past Sonia after 12 km. Both of them did not change their speeds throughout. Jane took 30 min to complete one round. What was Sonia's jogging speed in m/min?
3 m

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PSLE
Jane and Sonia started jogging from the same point of the 15 km track round a lake. They started at the same time but in opposite directions. Jane jogged past Sonia after 12 km. Both of them did not change their speeds throughout. Jane took 30 min to complete one round. What was Sonia's jogging speed in m/min?