Question

 how many different 10 letter words (real or imaginary) can be formed from the following letters?

K,Y,T,G,W,C,Y,D,A,A

Answer 1

The # of ten letters words that can be formed = 10! = 907,200 2!2! factorial 10! means > 10 . 9 .8 .7 .6 .5 .4 .3 .2 .1 hench there are 907,200 ways