Question
PSLE
Lucy and Dana started cycling at the same time along a 9 km track. Both did not change their speeds from start to finish. Lucy cycled at 450 m/min. When she reached the end of the track, Dana was 500 m behind her. What was Dana's cycling speed in m/min?
3 m

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PSLE
Lucy and Dana started cycling at the same time along a 9 km track. Both did not change their speeds from start to finish. Lucy cycled at 450 m/min. When she reached the end of the track, Dana was 500 m behind her. What was Dana's cycling speed in m/min?