Question
The total mass of Cole and Justin is 170 kg. The total mass of Liam and Justin is 126 kg.
  1. How much heavier is Cole than Liam?
  2. If the total mass of the 3 boys is 249 kg, how heavy is Justin?
4 m
(a)

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(b)

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The total mass of Cole and Justin is 170 kg. The total mass of Liam and Justin is 126 kg.
  1. How much heavier is Cole than Liam?
  2. If the total mass of the 3 boys is 249 kg, how heavy is Justin?