Question
The total mass of Jade, Gabby and Usha is 38b kg. Jade has a mass of 6b kg. Gabby is 9 kg heavier than Jade.
  1. What is Usha's mass in terms of b?
  2. If b = 10, what is Usha's mass? 
3 m
(a)

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(b)

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The total mass of Jade, Gabby and Usha is 38b kg. Jade has a mass of 6b kg. Gabby is 9 kg heavier than Jade.
  1. What is Usha's mass in terms of b?
  2. If b = 10, what is Usha's mass?