Mathematics, 28.06.2021 05:50, jfox8741

One day in the playground, the ratio of the number of boy to the number of girl is 3:5 later 6girls come, 9boy leave, the ratio of the number of girl become 1:4. Find the difference between the number of boy and girl originally

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One day in the playground, the ratio of the number of boy to the number of girl is 3:5 later 6girls...