Question
John has a mass 61 kg. Eric is 2 kg heavier than John and Daniel is 11 kg lighter than Eric.
  1. What is the mass of Daniel?
  2. What is the total mass of the three students?
4 m
(a)

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(b)

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John has a mass 61 kg. Eric is 2 kg heavier than John and Daniel is 11 kg lighter than Eric.
  1. What is the mass of Daniel?
  2. What is the total mass of the three students?