A total of 60 drawing notebooks were sold. If 20% of the first 20 sold were in color, 40% of the next 30 sold were in color and 80% of the last 10 sold were in color. What % of the 60 notebooks were in color?

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A total of 60 drawing notebooks were sold. If 20% of the first 20 sold were in color, 40% of the next 30 sold were in color and 80% of the last 10 sold were in color. What % of the 60 notebooks were in color?






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