Question
15 of the pencils in a bag were brown and the rest were purple and white. 40% of the purple pencils and 25% of the white pencils were thrown away. There was an equal number of purple and white pencils left. If there were 336 purple and white pencils left,
  1. What was the number of brown pencils?
  2. What was the total number of pencils in the bag at first?
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(a)

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(b)

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15 of the pencils in a bag were brown and the rest were purple and white. 40% of the purple pencils and 25% of the white pencils were thrown away. There was an equal number of purple and white pencils left. If there were 336 purple and white pencils left,
  1. What was the number of brown pencils?
  2. What was the total number of pencils in the bag at first?