Question
Ryan has a mass of 7a kg. Simon is 3 kg heavier than Ryan. The mass of Marion is twice the total mass of Ryan and Simon.
  1. Find the total mass of the 3 children in terms of a.
  2. If a = 3, find the average mass of the 3 children.
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Ryan has a mass of 7a kg. Simon is 3 kg heavier than Ryan. The mass of Marion is twice the total mass of Ryan and Simon.
  1. Find the total mass of the 3 children in terms of a.
  2. If a = 3, find the average mass of the 3 children.