Question
The total mass of Diana, Sabrina and Risa is 23x kg. Diana has a mass of 4x kg. Sabrina is 4 kg heavier than Diana.
  1. What is Risa's mass in terms of x?
  2. If x = 11, what is Risa's mass? 
3 m
(a)

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(b)

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The total mass of Diana, Sabrina and Risa is 23x kg. Diana has a mass of 4x kg. Sabrina is 4 kg heavier than Diana.
  1. What is Risa's mass in terms of x?
  2. If x = 11, what is Risa's mass?