Total number of letters = 8
Using these letters the number of 8 letters words formed is P = 8!.
This justifies what answer for what question? Q & A:
Using all the letters of the word "THURSDAY", how many different words can be formed?
Options:
(A) 7
(B) 8!
(C) 9
(D) 3
(E) 1
(B)