Question
PSLE
Eric and Erika started jogging at the same time from point M to point P along the route shown. Eric jogged 30 m/min faster than Erika. When Eric reached point P, he turned around at once to jog towards point M. He met Erika at point N. They did not change their speeds throughout. What was Erika's jogging speed in m/min?
2 m

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PSLE
Eric and Erika started jogging at the same time from point M to point P along the route shown. Eric jogged 30 m/min faster than Erika. When Eric reached point P, he turned around at once to jog towards point M. He met Erika at point N. They did not change their speeds throughout. What was Erika's jogging speed in m/min?