document.write( "Question 315431: If a box contains 60 red balls, 80 black balls, 100 white balls and 200 blue balls. how many balls would you have to pull out in the dark to be sure you had a matching pair? \n" ); document.write( "

Algebra.Com's Answer #225830 by scott8148(6628) $\"\"$ $\"About$

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there are FOUR different colors ; so if you pull out FIVE balls , at least two will match \n" ); document.write( "

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