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

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