document.write( "Question 1115416: Find the number of ways in which 9 people can be divided into 2 groups: the first group has 5 people and the second group has 4 people.
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Algebra.Com's Answer #730276 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Find the number of ways in which 9 people can be divided into 2 groups: the first group has 5 people and the second group has 4 people. \n" ); document.write( "----- \n" ); document.write( "# of 4 people groups = # of 5 people groups if the total # of people is 9 \n" ); document.write( "9C4 = (9*8*7*6)/(1*2*3*4) = (3*1*7*6) = 21*6 = 126 \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "----------- \n" ); document.write( " |