Question
The total mass of Zane and Ben is 187 kg. The total mass of Mark and Ben is 138 kg.
  1. How much heavier is Zane than Mark?
  2. If the total mass of the 3 boys is 246 kg, how heavy is Ben?
4 m
(a)

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(b)

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The total mass of Zane and Ben is 187 kg. The total mass of Mark and Ben is 138 kg.
  1. How much heavier is Zane than Mark?
  2. If the total mass of the 3 boys is 246 kg, how heavy is Ben?