document.write( "Question 420236: In how many ways can a committee be formed with a chair, a secretary, a treasurer, and four additional people if they are to all be chosen from a group of fifteen people? \n" ); document.write( "
Algebra.Com's Answer #293692 by edjones(8007)![]() ![]() You can put this solution on YOUR website! nPr=n!/(n-r)! Order is important. \n" ); document.write( "15P3=15!/12!=15*14*13=2730 Chair, secretary, treasurer. \n" ); document.write( ". \n" ); document.write( "nCr=n!/(n-r)!r! Orde not important. \n" ); document.write( "15!/(11!*4!)=1365 \n" ); document.write( ". \n" ); document.write( "2730*1365=3,726,450 ways \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |