Question
PSLE
Kathy and Risa started cycling at the same time along a 6 km track. Both did not change their speeds from start to finish. Kathy cycled at 400 m/min. When she reached the end of the track, Risa was 750 m behind her. What was Risa's cycling speed in m/min?
3 m

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PSLE
Kathy and Risa started cycling at the same time along a 6 km track. Both did not change their speeds from start to finish. Kathy cycled at 400 m/min. When she reached the end of the track, Risa was 750 m behind her. What was Risa's cycling speed in m/min?