document.write( "Question 854187: how many ways can tim choose 2 out of 6 dvd's to buy?
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Algebra.Com's Answer #514477 by aditya2117(32)![]() ![]() You can put this solution on YOUR website! 2 out of 6 dvd's could be chosen in the following ways : \n" ); document.write( " No. of ways = 6!/2*(6-2)! \n" ); document.write( " = 6*5*4!/2*4! \n" ); document.write( " = 30/2 \n" ); document.write( " = 15 \n" ); document.write( "Ans: 15 ways \n" ); document.write( " |