Question
There are thrice as many red coats as purple coats in a sale. If there are 100 red and purple coats altogether,
  1. how many red coats are there?
  2. how many more red coats than purple coats?
3 m
(a)

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(b)

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There are thrice as many red coats as purple coats in a sale. If there are 100 red and purple coats altogether,
  1. how many red coats are there?
  2. how many more red coats than purple coats?