document.write( "Question 515147: How many ways can the letters A, B, C and D be arranged in a row if B cannot be in second place and repetition is not allowed? \n" ); document.write( "

Algebra.Com's Answer #343755 by Edwin McCravy(20055) $\"\"$ $\"About$

You can put this solution on YOUR website!

\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "4×3×2×1 - 3×2×1    [or 4! - 3!]\r\n" );
document.write( "     24 - 6\r\n" );
document.write( "       18\r\n" );
document.write( "\r\n" );
document.write( "Here they all are:\r\n" );
document.write( "\r\n" );
document.write( " 1.  A C B D\r\n" );
document.write( " 2.  A C D B\r\n" );
document.write( " 3.  A D B C\r\n" );
document.write( " 4.  A D C B\r\n" );
document.write( " 5.  B A C D\r\n" );
document.write( " 6.  B A D C\r\n" );
document.write( " 7.  B C A D\r\n" );
document.write( " 8.  B C D A\r\n" );
document.write( " 9.  B D A C\r\n" );
document.write( "10.  B D C A\r\n" );
document.write( "11.  C A B D\r\n" );
document.write( "12.  C A D B\r\n" );
document.write( "13.  C D A B\r\n" );
document.write( "14.  C D B A\r\n" );
document.write( "15.  D A B C\r\n" );
document.write( "16.  D A C B\r\n" );
document.write( "17.  D C A B\r\n" );
document.write( "18.  D C B A\r\n" );
document.write( "\r\n" );
document.write( "Edwin

\n" ); document.write( "

\n" );