Question
Rael has a mass of 7g kg. Perry is 4 kg heavier than Rael. The mass of Zara is twice the total mass of Rael and Perry.
  1. Find the total mass of the 3 children in terms of g.
  2. If g = 2, find the average mass of the 3 children.
2 m
(a)

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(b)

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Rael has a mass of 7g kg. Perry is 4 kg heavier than Rael. The mass of Zara is twice the total mass of Rael and Perry.
  1. Find the total mass of the 3 children in terms of g.
  2. If g = 2, find the average mass of the 3 children.