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

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