Question
The total mass of Tom and Oscar is 170 kg. The total mass of Oliver and Oscar is 136 kg.
  1. How much heavier is Tom than Oliver?
  2. If the total mass of the 3 boys is 239 kg, how heavy is Oscar?
4 m
(a)

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(b)

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The total mass of Tom and Oscar is 170 kg. The total mass of Oliver and Oscar is 136 kg.
  1. How much heavier is Tom than Oliver?
  2. If the total mass of the 3 boys is 239 kg, how heavy is Oscar?