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

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