Question
There are some pupils in the school hall. 310 of them are girls, of whom 70% of them do not wear hats. 37 of the boys do not wear hats. What is the percentage of the pupils in the school hall who wear hats?
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There are some pupils in the school hall. 310 of them are girls, of whom 70% of them do not wear hats. 37 of the boys do not wear hats. What is the percentage of the pupils in the school hall who wear hats?