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A club with a total membership of 30 has formed 3 [#permalink]
25 Jul 2008, 02:34
A club with a total membership of 30 has formed 3 committees, M, S, and R, which have 8, 12, and 5 members, respectively. If no member of committee M is on either of the other 2 committees, what is the greatest possible number of members in the club who are on none of the committees? A. 5 B. 7 C. 8 D. 10 E. 12