Question
The total mass of Rachel, Esther and Xuan is 27k kg. Rachel has a mass of 8k kg. Esther is 8 kg heavier than Rachel.
  1. What is Xuan's mass in terms of k?
  2. If k = 10, what is Xuan's mass? 
3 m
(a)

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(b)

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The total mass of Rachel, Esther and Xuan is 27k kg. Rachel has a mass of 8k kg. Esther is 8 kg heavier than Rachel.
  1. What is Xuan's mass in terms of k?
  2. If k = 10, what is Xuan's mass?