Question
15 of the pencils in a bag were black and the rest were purple and green. 40% of the purple pencils and 10% of the green pencils were thrown away. There was an equal number of purple and green pencils left. If there were 216 purple and green pencils left,
  1. What was the number of black 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 black and the rest were purple and green. 40% of the purple pencils and 10% of the green pencils were thrown away. There was an equal number of purple and green pencils left. If there were 216 purple and green pencils left,
  1. What was the number of black pencils?
  2. What was the total number of pencils in the bag at first?