Question
PSLE
Vina and Opal 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. Vina jogged past Opal after 4 km. Both of them did not change their speeds throughout. Vina took 40 min to complete one round. What was Opal's jogging speed in m/min?
3 m

Click button first when a symbol is required. X

PSLE
Vina and Opal 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. Vina jogged past Opal after 4 km. Both of them did not change their speeds throughout. Vina took 40 min to complete one round. What was Opal's jogging speed in m/min?