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2010 AMC 10B Problems/Problem 3

Revision as of 12:42, 30 May 2010 by Fermat007 (talk | contribs) (Created page with 'After you draw <math>4</math> socks, you can have one of each color, so (according to the pigeonhole principle), if you pull <math>\boxed{\mathrm{(C)} 5}</math> then you will be …')
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After you draw $4$ socks, you can have one of each color, so (according to the pigeonhole principle), if you pull $\boxed{\mathrm{(C)} 5}$ then you will be guaranteed a matching pair.

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