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A club with a total membership of 30 has formed 3 committees [#permalink]
10 May 2008, 22:19
A club with a total membership of 30 has formed 3 committees M,S and R, which have 8,12 and 5 memebers 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?