Question
PSLE
Kathy and Japheth ran in a race. When Japheth had completed the race, Kathy had only run 35 of the distance. Japheth's speed was 70 m/min faster than Kathy's speed. Both of them did not change their speeds throughout the race. What was Kathy's speed in m/min?
3 m

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PSLE
Kathy and Japheth ran in a race. When Japheth had completed the race, Kathy had only run 35 of the distance. Japheth's speed was 70 m/min faster than Kathy's speed. Both of them did not change their speeds throughout the race. What was Kathy's speed in m/min?