Question
There were 3 times as many girls as boys in the canteen at first. After 2 girls left and 8 boys entered the canteen, there were 10 more girls than boys remaining in the canteen. What was the number of girls in the canteen at first?
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There were 3 times as many girls as boys in the canteen at first. After 2 girls left and 8 boys entered the canteen, there were 10 more girls than boys remaining in the canteen. What was the number of girls in the canteen at first?