Question
In a school field, 110 of the boys wore scarves. After 480 boys who wore scarves entered the school field, the percentage of boys who wore scarves increased to 90%. How many boys in the school field did not wear scarves?
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In a school field, 110 of the boys wore scarves. After 480 boys who wore scarves entered the school field, the percentage of boys who wore scarves increased to 90%. How many boys in the school field did not wear scarves?