Question
PSLE
Luke and Zara started jogging at the same time from point M to point P along the route shown. Luke jogged 50 m/min faster than Zara. When Luke reached point P, he turned around at once to jog towards point M. He met Zara at point N. They did not change their speeds throughout. What was Zara's jogging speed in m/min?
2 m

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PSLE
Luke and Zara started jogging at the same time from point M to point P along the route shown. Luke jogged 50 m/min faster than Zara. When Luke reached point P, he turned around at once to jog towards point M. He met Zara at point N. They did not change their speeds throughout. What was Zara's jogging speed in m/min?