document.write( "Question 1068793: You have 5 songs by Adele and 3 by Lady Gaga and wish to make a playlist. (A playlist is just an ordering of your 8 songs.\r
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document.write( "How many playlists are possible in which no two Lady Gaga songs are consecutive? (Hint:
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document.write( "Consider choosing the Adele playlist first, then counting the ways Gaga songs could be inserted.)
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Algebra.Com's Answer #684196 by trsomas23@gmail.com(17)![]() ![]() You can put this solution on YOUR website! The 5 songs of Adele can be arranged in 5! = 120 ways \n" ); document.write( "In any arrangement of the 5 songs of Adele, there are 6 slots left: 4 in between, 1 in the beginning and 1 at the end. \n" ); document.write( "If Lady Gaga's songs are inserted in these 6 spaces, then no two Lady Gaga's songs are consecutive.\r \n" ); document.write( "\n" ); document.write( "3 songs of Lady Gaga can be arranged in 6 slots in \n" ); document.write( "6P3 = 6!/(6-3)! = 6!/3! = 120 ways\r \n" ); document.write( "\n" ); document.write( "Total number of ways = 120 x 120 = 14400 (Answer) \n" ); document.write( "Email: trsomas23@gmail.com \n" ); document.write( "Skype: sahay.avinash \n" ); document.write( " |