Question
George has a mass of 5k kg. Riordan is 5 kg heavier than George. The mass of Eva is twice the total mass of George and Riordan.
  1. Find the total mass of the 3 children in terms of k.
  2. If k = 2, find the average mass of the 3 children.
2 m
(a)

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(b)

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George has a mass of 5k kg. Riordan is 5 kg heavier than George. The mass of Eva is twice the total mass of George and Riordan.
  1. Find the total mass of the 3 children in terms of k.
  2. If k = 2, find the average mass of the 3 children.