Question
In a canteen, 47 of the pupils wore vests. After 48 pupils who wore vests entered the canteen, the percentage of pupils who wore vests increased to 80%. How many pupils in the canteen did not wear vests?
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In a canteen, 47 of the pupils wore vests. After 48 pupils who wore vests entered the canteen, the percentage of pupils who wore vests increased to 80%. How many pupils in the canteen did not wear vests?