Question
The total mass of Lucy and Elijah is 92 kg. Lucy weighs 20 kg more than Elijah.
  1. Find Elijah's mass.
  2. Express Elijah's mass as a fraction of Lucy's mass in its simplest form.
4 m
(a)

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(b)

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The total mass of Lucy and Elijah is 92 kg. Lucy weighs 20 kg more than Elijah.
  1. Find Elijah's mass.
  2. Express Elijah's mass as a fraction of Lucy's mass in its simplest form.