Question
Simon has a mass 57 kg. Lee is 3 kg heavier than Simon and Japheth is 10 kg lighter than Lee.
  1. What is the mass of Japheth?
  2. What is the total mass of the three students?
4 m
(a)

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(b)

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Simon has a mass 57 kg. Lee is 3 kg heavier than Simon and Japheth is 10 kg lighter than Lee.
  1. What is the mass of Japheth?
  2. What is the total mass of the three students?