document.write( "Question 281468: How many different 4-letter radio station call codes are possible if each code must begin with K or W and no repetition of letters is permitted? \n" ); document.write( "
Algebra.Com's Answer #204478 by brucewill(101)![]() ![]() ![]() You can put this solution on YOUR website! The first letter must me K or W, 2 choices. \n" ); document.write( "The second letter must not be the first letter, 25 choices. \n" ); document.write( "The third letter must not be either of the first two letters, 24 choices. \n" ); document.write( "The fourth letter must not be either of the first 3 letters, 23 choices.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "27600 possible combination. \n" ); document.write( " |