document.write( "Question 248725: There are 5 pairs of socks in a drawer. 2 Blue pairs, 2 Black pairs and one gray pair. The socks are not folded together. If you randomly pick two socks, what is the probability that you will pick a matched pair? that you will pick a gray pair? \n" ); document.write( "
Algebra.Com's Answer #181236 by edjones(8007)\"\" \"About 
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nCr=n!/((n-r)!r!)
\n" ); document.write( "There are 10 socks.
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\n" ); document.write( "Pick a gray pair:
\n" ); document.write( "2C2 / 10C2 = 1/45
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\n" ); document.write( "4C2 / 10C2 = 6/45 blue pair or black pair
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\n" ); document.write( "Any pair: 6/45 + 6/45 + 1/45
\n" ); document.write( "=13/45
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