Question
Natalie and Oscar started running together along a cross country track. When Oscar completed the track in 21 minutes, Natalie had run only 38 of the track. Natalie’s average speed was 100 m/min slower than Oscar’s.
  1. How long was the cross country track in m?
  2. Find Natalie’s average speed in m/min.
3 m
(a)

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(b)

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Natalie and Oscar started running together along a cross country track. When Oscar completed the track in 21 minutes, Natalie had run only 38 of the track. Natalie’s average speed was 100 m/min slower than Oscar’s.
  1. How long was the cross country track in m?
  2. Find Natalie’s average speed in m/min.