Question
In a hall, 15 of the children wore caps. After 150 children who wore caps entered the hall, the percentage of children who wore caps increased to 70%. How many children in the hall did not wear caps?
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In a hall, 15 of the children wore caps. After 150 children who wore caps entered the hall, the percentage of children who wore caps increased to 70%. How many children in the hall did not wear caps?