Question
The total mass of Ian and Zoe is 8657 kg. Ian weighs 3313 kg. 
  1. What is Zoe's mass?
  2. How much heavier than Ian is Zoe?
4 m
(a)

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(b)

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The total mass of Ian and Zoe is 8657 kg. Ian weighs 3313 kg. 
  1. What is Zoe's mass?
  2. How much heavier than Ian is Zoe?