Question
In a parade square, 29 of the girls wore cardigans. After 312 girls who wore cardigans entered the parade square, the percentage of girls who wore cardigans increased to 80%. How many girls in the parade square did not wear cardigans?
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In a parade square, 29 of the girls wore cardigans. After 312 girls who wore cardigans entered the parade square, the percentage of girls who wore cardigans increased to 80%. How many girls in the parade square did not wear cardigans?