Question
The total mass of Jade, Barbara and Jean is 29j kg. Jade has a mass of 5j kg. Barbara is 2 kg heavier than Jade.
  1. What is Jean's mass in terms of j?
  2. If j = 12, what is Jean's mass? 
3 m
(a)

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(b)

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The total mass of Jade, Barbara and Jean is 29j kg. Jade has a mass of 5j kg. Barbara is 2 kg heavier than Jade.
  1. What is Jean's mass in terms of j?
  2. If j = 12, what is Jean's mass?