Question
PSLE
Lucy and Oscar ran in a race. When Oscar had completed the race, Lucy had only run 47 of the distance. Lucy's speed was 81 m/min slower than Oscar's speed. Both of them did not change their speeds throughout the race. What was Oscar's speed in m/min?
3 m

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PSLE
Lucy and Oscar ran in a race. When Oscar had completed the race, Lucy had only run 47 of the distance. Lucy's speed was 81 m/min slower than Oscar's speed. Both of them did not change their speeds throughout the race. What was Oscar's speed in m/min?