Using all the letters of the word "LETTERS", how many words can be formed, which begin with L and end with S?
Select the correct option: A) 50 B) 120 C) 160 D) 100 E) 124
There are five letters in the given word.   Consider 7 blanks ....   The first blank and last blank must be filled with L and S all the remaining three blanks can be filled with the remaining 5 letters in 5! ways.   The number of words = 5! = 120.   Answer: 120
<result>B</result>
Using all the letters of the word "LETTERS", how many words can be formed, which begin with L and end with S?