Question
Xavier has a mass of 84 kg. Tom is 4 kg lighter than Xavier.
  1. What is Tom's mass?
  2. Express Tom's mass as a fraction of Xavier's mass. Give your answer in its lowest terms.
4 m
(a)

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(b)

Click button first when a symbol is required. X

Xavier has a mass of 84 kg. Tom is 4 kg lighter than Xavier.
  1. What is Tom's mass?
  2. Express Tom's mass as a fraction of Xavier's mass. Give your answer in its lowest terms.