Question
Pierre has a mass 55 kg. Oliver is 2 kg heavier than Pierre and Andy is 10 kg lighter than Oliver.
  1. What is the mass of Andy?
  2. What is the total mass of the three students?
4 m
(a)

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(b)

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Pierre has a mass 55 kg. Oliver is 2 kg heavier than Pierre and Andy is 10 kg lighter than Oliver.
  1. What is the mass of Andy?
  2. What is the total mass of the three students?