Question
The total mass of Harry and Jack is 163 kg. The total mass of Andy and Jack is 129 kg.
  1. How much heavier is Harry than Andy?
  2. If the total mass of the 3 boys is 240 kg, how heavy is Jack?
4 m
(a)

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(b)

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The total mass of Harry and Jack is 163 kg. The total mass of Andy and Jack is 129 kg.
  1. How much heavier is Harry than Andy?
  2. If the total mass of the 3 boys is 240 kg, how heavy is Jack?