Question
PSLE
Wendy and Mary started cycling at the same time along a 8.55 km track. Both did not change their speeds from start to finish. Wendy cycled at 450 m/min. When she reached the end of the track, Mary was 475 m behind her. What was Mary's cycling speed in m/min?
3 m

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PSLE
Wendy and Mary started cycling at the same time along a 8.55 km track. Both did not change their speeds from start to finish. Wendy cycled at 450 m/min. When she reached the end of the track, Mary was 475 m behind her. What was Mary's cycling speed in m/min?