Question
Mary and Fabian started running together along a cross country track. When Fabian completed the track in 31 minutes, Mary had run only 13 of the track. Mary’s average speed was 104 m/min slower than Fabian’s.
  1. How long was the cross country track in m?
  2. Find Mary’s average speed in m/min.
3 m
(a)

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(b)

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Mary and Fabian started running together along a cross country track. When Fabian completed the track in 31 minutes, Mary had run only 13 of the track. Mary’s average speed was 104 m/min slower than Fabian’s.
  1. How long was the cross country track in m?
  2. Find Mary’s average speed in m/min.