Question
In a canteen, 45 of the pupils wore vests. After 175 pupils who wore vests left the canteen, the percentage of pupils who wore vests decreased to 10%. How many pupils in the canteen did not wear vests?
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In a canteen, 45 of the pupils wore vests. After 175 pupils who wore vests left the canteen, the percentage of pupils who wore vests decreased to 10%. How many pupils in the canteen did not wear vests?