Question
PSLE
Erika and Roshel started cycling at the same time along a 4 km track. Both did not change their speeds from start to finish. Erika cycled at 400 m/min. When she reached the end of the track, Roshel was 1000 m behind her. What was Roshel's cycling speed in m/min?
3 m

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PSLE
Erika and Roshel started cycling at the same time along a 4 km track. Both did not change their speeds from start to finish. Erika cycled at 400 m/min. When she reached the end of the track, Roshel was 1000 m behind her. What was Roshel's cycling speed in m/min?