Question
PSLE
Fred and Penelope started jogging at the same time from point Q to point S along the route shown. Fred jogged 40 m/min faster than Penelope. When Fred reached point S, he turned around at once to jog towards point Q. He met Penelope at point R. They did not change their speeds throughout. What was Penelope's jogging speed in m/min?
2 m

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PSLE
Fred and Penelope started jogging at the same time from point Q to point S along the route shown. Fred jogged 40 m/min faster than Penelope. When Fred reached point S, he turned around at once to jog towards point Q. He met Penelope at point R. They did not change their speeds throughout. What was Penelope's jogging speed in m/min?