Question
The total mass of Ben and Michael is 178 kg. The total mass of Julian and Michael is 129 kg.
  1. How much heavier is Ben than Julian?
  2. If the total mass of the 3 boys is 255 kg, how heavy is Michael?
4 m
(a)

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(b)

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The total mass of Ben and Michael is 178 kg. The total mass of Julian and Michael is 129 kg.
  1. How much heavier is Ben than Julian?
  2. If the total mass of the 3 boys is 255 kg, how heavy is Michael?