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

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