Question
Caden has a mass of 5s kg. Valen is 4 kg heavier than Caden. The mass of Barbara is thrice the total mass of Caden and Valen.
  1. Find the total mass of the 3 children in terms of s.
  2. If s = 2, find the average mass of the 3 children.
2 m
(a)

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(b)

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Caden has a mass of 5s kg. Valen is 4 kg heavier than Caden. The mass of Barbara is thrice the total mass of Caden and Valen.
  1. Find the total mass of the 3 children in terms of s.
  2. If s = 2, find the average mass of the 3 children.