Question
The total mass of Sarah, Esther and Jane is 32b kg. Sarah has a mass of 4b kg. Esther is 8 kg heavier than Sarah.
  1. What is Jane's mass in terms of b?
  2. If b = 12, what is Jane's mass? 
3 m
(a)

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(b)

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The total mass of Sarah, Esther and Jane is 32b kg. Sarah has a mass of 4b kg. Esther is 8 kg heavier than Sarah.
  1. What is Jane's mass in terms of b?
  2. If b = 12, what is Jane's mass?