document.write( "Question 427686: How many different 5-letter \"words\" are there which read the same forward as backward? (We use only capital letters and, of course, repeats are allowed.) \n" ); document.write( "
Algebra.Com's Answer #297438 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! How many different 5-letter \"words\" are there which read the same forward as backward? (We use only capital letters and, of course, repeats are allowed.) \n" ); document.write( "---- \n" ); document.write( "1st and 5th letter: 26 ways \n" ); document.write( "2nd and 4th letter: 25 ways \n" ); document.write( "3rd letter: 24 ways \n" ); document.write( "--- \n" ); document.write( "Total ways 2*26*2*25*24 = 4*26*25*24 = 62400 \"words\" \n" ); document.write( "=============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |