Question
The total mass of Dana and Ivan is 150 kg. Dana weighs 10 kg more than Ivan.
  1. Find Ivan's mass.
  2. Express Ivan's mass as a fraction of Dana's mass in its simplest form.
4 m
(a)

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(b)

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The total mass of Dana and Ivan is 150 kg. Dana weighs 10 kg more than Ivan.
  1. Find Ivan's mass.
  2. Express Ivan's mass as a fraction of Dana's mass in its simplest form.