Using all the letters of the word "BUTTON", how many words can be formed, which begin with B and end with N? Choose the most appropriate option.
A) 9 B) 24 C) 7 D) 5 E) 3
There are five letters in the given word.   Consider 6 blanks ....   The first blank and last blank must be filled with B and N all the remaining three blanks can be filled with the remaining 4 letters in 4! ways.   The number of words = 4! = 24.   Answer:24
<result>B</result>
Using all the letters of the word "BUTTON", how many words can be formed, which begin with B and end with N?