How many words can be formed by using all letters of the word ‘ILLINOIS’ ?
Answers.
A) 40230  B) 40320  C) 30420  D) 20340  E) 40240
Solution   The word ILLINOIS contains 8 different letters.   Required number of words = 8P8 = 8 ! = (8 x 7 x 6 x 5 x 4 x 3 x 2 x 1) = 40320   Answer 40320
<result>B</result>
How many words can be formed by using all letters of the word ‘ILLINOIS’ ?