document.write( "Question 352450: The music class has 20 students & the teacher wants them to practice in groups of 5. How many different ways can the first groups of 5 be chosen? we are doing permutations & combinations. I came up with 1,860,480 or 38,760. im not sure which one is the right answer if any. \n" ); document.write( "
Algebra.Com's Answer #251860 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! The music class has 20 students & the teacher wants them to practice in groups of 5. How many different ways can the first groups of 5 be chosen? we are doing permutations & combinations. I came up with 1,860,480 or 38,760. im not sure which one is the right answer if any. \n" ); document.write( "----------------------- \n" ); document.write( "20*19*18*17*16 = 1860480 \n" ); document.write( "But group ABCDE is the same as ADCEB, so you have to divide by 5! = 120 \n" ); document.write( "--> 15504 \n" ); document.write( " \n" ); document.write( " |