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

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