Question
Mark has a mass 63 kg. Bobby is 2 kg heavier than Mark and Ken is 12 kg lighter than Bobby.
  1. What is the mass of Ken?
  2. What is the total mass of the three students?
4 m
(a)

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(b)

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Mark has a mass 63 kg. Bobby is 2 kg heavier than Mark and Ken is 12 kg lighter than Bobby.
  1. What is the mass of Ken?
  2. What is the total mass of the three students?