Question
At a lunch function, every member brought 1 or 2 children. If the ratio of the number of members to the number of children was 5 : 7, what fraction of the members brought 1 child?
2 m

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At a lunch function, every member brought 1 or 2 children. If the ratio of the number of members to the number of children was 5 : 7, what fraction of the members brought 1 child?