Question
PSLE
Eliza and Vina started jogging from the same point of the 10 km track round a housing estate. They started at the same time but in opposite directions. Eliza jogged past Vina after 4 km. Both of them did not change their speeds throughout. Eliza took 40 min to complete one round. What was Vina's jogging speed in m/min?
3 m

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PSLE
Eliza and Vina started jogging from the same point of the 10 km track round a housing estate. They started at the same time but in opposite directions. Eliza jogged past Vina after 4 km. Both of them did not change their speeds throughout. Eliza took 40 min to complete one round. What was Vina's jogging speed in m/min?