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Difference between revisions of "1998 AJHSME Problems/Problem 23"

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Revision as of 12:22, 27 June 2011

If the pattern in the diagram continues, what fraction of the interior would be shaded in the eighth triangle?

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$\text{(A)}\ \frac{3}{8}\qquad\text{(B)}\ \frac{5}{27}\qquad\text{(C)}\ \frac{7}{16}\qquad\text{(D)}\ \frac{9}{16}\qquad\text{(E)}\ \frac{11}{45}$

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