Question
The total mass of Sabrina, Esther and Betty is 42x kg. Sabrina has a mass of 4x kg. Esther is 2 kg heavier than Sabrina.
  1. What is Betty's mass in terms of x?
  2. If x = 10, what is Betty's mass? 
3 m
(a)

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(b)

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The total mass of Sabrina, Esther and Betty is 42x kg. Sabrina has a mass of 4x kg. Esther is 2 kg heavier than Sabrina.
  1. What is Betty's mass in terms of x?
  2. If x = 10, what is Betty's mass?