Question

（11*10*9*.*3*2*1）/（22*24*25*27）

Answer 1

（11*10*9*.*3*2*1）/（22*24*25*27）

=[(11*2)(2*5*5)(9*3)8*7(6*4)*1]/22*24*25*27

=2*8*7*1

=16*7

=112