1989 AHSME Problems/Problem 24: Difference between revisions
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<math> \mathrm{(A) \ 7 } \qquad \mathrm{(B) \ 8 } \qquad \mathrm{(C) \ 9 } \qquad \mathrm{(D) \ 10 } \qquad \mathrm{(E) \ 11 } </math> | <math> \mathrm{(A) \ 7 } \qquad \mathrm{(B) \ 8 } \qquad \mathrm{(C) \ 9 } \qquad \mathrm{(D) \ 10 } \qquad \mathrm{(E) \ 11 } </math> | ||
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Revision as of 12:49, 5 July 2013
Five people are sitting at a round table. Let 
be the number of people sitting next to at least 1 female and 
be the number of people sitting next to at least one male. The number of possible ordered pairs 
is
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