Question
There were some girls and boys in a classroom. 10 girls left and now, there are thrice as many girls as boys in the classroom. If there are only 10 boys, how many girls were in the classroom at first?
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There were some girls and boys in a classroom. 10 girls left and now, there are thrice as many girls as boys in the classroom. If there are only 10 boys, how many girls were in the classroom at first?