Question
The total mass of Winnie, Kathy and Erika is 24d kg. Winnie has a mass of 8d kg. Kathy is 3 kg heavier than Winnie.
  1. What is Erika's mass in terms of d?
  2. If d = 12, what is Erika's mass? 
3 m
(a)

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(b)

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The total mass of Winnie, Kathy and Erika is 24d kg. Winnie has a mass of 8d kg. Kathy is 3 kg heavier than Winnie.
  1. What is Erika's mass in terms of d?
  2. If d = 12, what is Erika's mass?