Question
In a hall, 18 of the boys wore caps. After 209 boys who wore caps entered the hall, the percentage of boys who wore caps increased to 60%. How many boys in the hall did not wear caps?
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In a hall, 18 of the boys wore caps. After 209 boys who wore caps entered the hall, the percentage of boys who wore caps increased to 60%. How many boys in the hall did not wear caps?