document.write( "Question 1143364: Four women are sitting in chairs. In how many ways can they get up and reseat themselves in such a way that no one is sitting in the chair that she occupied before? \n" ); document.write( "
Algebra.Com's Answer #764148 by Edwin McCravy(20064)\"\" \"About 
You can put this solution on YOUR website!
Four women are sitting in chairs. In how many ways can they get up and reseat
\n" ); document.write( "themselves in such a way that no one is sitting in the chair that she occupied
\n" ); document.write( "before?
\n" ); document.write( "
\r\n" );
document.write( "It's 4 sub-factorial = !4 = \r\n" );
document.write( "\r\n" );
document.write( "   ABCD   <-- their original seating. They can all 4 re-seat in different chairs 9 ways:\r\n" );
document.write( "1. BADC\r\n" );
document.write( "2. BCDA\r\n" );
document.write( "3. BDAC\r\n" );
document.write( "4. CADB\r\n" );
document.write( "5. CDAB\r\n" );
document.write( "6. CDBA\r\n" );
document.write( "7. DABC\r\n" );
document.write( "8. DCAB\r\n" );
document.write( "9. DCBA\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" ); document.write( "
\n" );