Question
The total mass of Albert and Zara is 8518 kg. Albert weighs 3812 kg. 
  1. What is Zara's mass?
  2. How much heavier than Albert is Zara?
4 m
(a)

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(b)

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The total mass of Albert and Zara is 8518 kg. Albert weighs 3812 kg. 
  1. What is Zara's mass?
  2. How much heavier than Albert is Zara?