Question 1143996
P( 7,3 ) = {{{ 7! / ( 7 - 3 )! }}}
P( 7,3 ) = {{{ ( 7*6*5*4*3*2*1 ) / ( 4*3*2*1 ) }}}
P( 7,3 ) = {{{ 7*6*5 }}}
P( 7,3 ) = {{{ 210 }}} ways
Use permutations because the order of the seating matters