Question
The total mass of Yoko, Barbara and Vanessa is 37d kg. Yoko has a mass of 7d kg. Barbara is 4 kg heavier than Yoko.
  1. What is Vanessa's mass in terms of d?
  2. If d = 10, what is Vanessa's mass? 
3 m
(a)

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(b)

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The total mass of Yoko, Barbara and Vanessa is 37d kg. Yoko has a mass of 7d kg. Barbara is 4 kg heavier than Yoko.
  1. What is Vanessa's mass in terms of d?
  2. If d = 10, what is Vanessa's mass?