Question
The total mass of Perry and Japheth is 176 kg. The total mass of Peter and Japheth is 121 kg.
  1. How much heavier is Perry than Peter?
  2. If the total mass of the 3 boys is 234 kg, how heavy is Japheth?
4 m
(a)

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(b)

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The total mass of Perry and Japheth is 176 kg. The total mass of Peter and Japheth is 121 kg.
  1. How much heavier is Perry than Peter?
  2. If the total mass of the 3 boys is 234 kg, how heavy is Japheth?