Question
In a hall, 710 of the boys wore vests. After 160 boys who wore vests left the hall, the percentage of boys who wore vests decreased to 10%. How many boys in the hall did not wear vests?
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In a hall, 710 of the boys wore vests. After 160 boys who wore vests left the hall, the percentage of boys who wore vests decreased to 10%. How many boys in the hall did not wear vests?