document.write( "Question 572550: How mnay people do you need to gather to be sure that at least two of them have a birthday in the same month? \n" ); document.write( "
Algebra.Com's Answer #368592 by richard1234(7193)![]() ![]() You can put this solution on YOUR website! There are 12 months, so according to pigeonhole principle, you need 13 so that at least two of them have a birthday in the same month. \n" ); document.write( " |