Question
The total mass of Julie, Kylie and Marion is 24s kg. Julie has a mass of 9s kg. Kylie is 3 kg heavier than Julie.
  1. What is Marion's mass in terms of s?
  2. If s = 12, what is Marion's mass? 
3 m
(a)

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(b)

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The total mass of Julie, Kylie and Marion is 24s kg. Julie has a mass of 9s kg. Kylie is 3 kg heavier than Julie.
  1. What is Marion's mass in terms of s?
  2. If s = 12, what is Marion's mass?