Mathematics, 23.09.2019 04:30 sydney6384
In psychology 101, the ratio of the number of girls to the number of boys is $3: 1$. after one girl drops the class and three more boys sign up, the ratio of the number of girls to the number of boys becomes $5: 2$. how many students are in the class after these changes?
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In psychology 101, the ratio of the number of girls to the number of boys is $3: 1$. after one girl...
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