Question
Jean has a mass of 39 kg. Jean is 9 kg heavier than Bobby. Julian is as heavy as Bobby.
  1. How heavy is Julian?
  2. What is the total mass of the 3 children?
4 m
(a)

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(b)

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Jean has a mass of 39 kg. Jean is 9 kg heavier than Bobby. Julian is as heavy as Bobby.
  1. How heavy is Julian?
  2. What is the total mass of the 3 children?