Question
In a hall, 12 of the children wore scarves. After 8 children who wore scarves left the hall, the percentage of children who wore scarves decreased to 30%. How many children in the hall did not wear scarves?
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In a hall, 12 of the children wore scarves. After 8 children who wore scarves left the hall, the percentage of children who wore scarves decreased to 30%. How many children in the hall did not wear scarves?