Question
At a gala event, every member brought 1 or 2 guests. If the ratio of the number of members to the number of guests was 5 : 7, what fraction of the members who brought 1 guest?
2 m

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At a gala event, every member brought 1 or 2 guests. If the ratio of the number of members to the number of guests was 5 : 7, what fraction of the members who brought 1 guest?