document.write( "Question 275509: There are 6 people running the 100 meter dash. How many different orders can the runners finish? \n" ); document.write( "
Algebra.Com's Answer #200928 by Theo(13342)![]() ![]() You can put this solution on YOUR website! 6! = 6*5*4*3*2*1 = 720 possible ways.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "assume it was only 3 people.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "that would be 3! = 3*2*1 = 6\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "let the people be abc.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "order of finish possible would be:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "abc \n" ); document.write( "acb \n" ); document.write( "bac \n" ); document.write( "bca \n" ); document.write( "cab \n" ); document.write( "cba\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "this is called a permutation because order is important.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "assume it was 4 people.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "number of ways would be 4! = 4*3*2*1 = 24\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "possible ways get a lot bigger after 4.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "assume the people were abcd\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "possible ways would be:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "abcd \n" ); document.write( "abdc \n" ); document.write( "acbd \n" ); document.write( "acdb \n" ); document.write( "adbc \n" ); document.write( "adcb \n" ); document.write( "bacd \n" ); document.write( "badc \n" ); document.write( "bcad \n" ); document.write( "bcda \n" ); document.write( "bdac \n" ); document.write( "bdca \n" ); document.write( "cabd \n" ); document.write( "cadb \n" ); document.write( "cbad \n" ); document.write( "cbda \n" ); document.write( "cdab \n" ); document.write( "cdba \n" ); document.write( "dabc \n" ); document.write( "dacb \n" ); document.write( "dbac \n" ); document.write( "dbca \n" ); document.write( "dcab \n" ); document.write( "dcba\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |