Question
A bag of 39 mochi balls were distributed to a group of girls and boys. Each girl received 3 mochi balls and each boy received 4 mochi balls. Given that there were thrice as many girls as boys, how many girls were there in the group?
4 m

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A bag of 39 mochi balls were distributed to a group of girls and boys. Each girl received 3 mochi balls and each boy received 4 mochi balls. Given that there were thrice as many girls as boys, how many girls were there in the group?