Question
In a basketball court, 110 of the pupils wore vests. After 315 pupils who wore vests entered the basketball court, the percentage of pupils who wore vests increased to 80%. How many pupils in the basketball court did not wear vests?
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In a basketball court, 110 of the pupils wore vests. After 315 pupils who wore vests entered the basketball court, the percentage of pupils who wore vests increased to 80%. How many pupils in the basketball court did not wear vests?