Question
At a birthday party, every parent brought 1 or 2 children. If the ratio of the number of parents to the number of children was 3 : 4, what fraction of the parents who brought 2 children each?
2 m

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At a birthday party, every parent brought 1 or 2 children. If the ratio of the number of parents to the number of children was 3 : 4, what fraction of the parents who brought 2 children each?