Question
The total mass of Nora, Diana and Zoe is 24y kg. Nora has a mass of 7y kg. Diana is 3 kg heavier than Nora.
  1. What is Zoe's mass in terms of y?
  2. If y = 11, what is Zoe's mass? 
3 m
(a)

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(b)

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The total mass of Nora, Diana and Zoe is 24y kg. Nora has a mass of 7y kg. Diana is 3 kg heavier than Nora.
  1. What is Zoe's mass in terms of y?
  2. If y = 11, what is Zoe's mass?