Question
79 of the crayons in a bag were yellow and the rest were brown and green. 10% of the brown crayons and 20% of the green crayons were thrown away. There was an equal number of brown and green crayons left. If there were 432 brown and green crayons left,
  1. What was the number of yellow crayons?
  2. What was the total number of crayons in the bag at first?
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(a)

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(b)

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79 of the crayons in a bag were yellow and the rest were brown and green. 10% of the brown crayons and 20% of the green crayons were thrown away. There was an equal number of brown and green crayons left. If there were 432 brown and green crayons left,
  1. What was the number of yellow crayons?
  2. What was the total number of crayons in the bag at first?