Using all the letters of the word "NOKIASED", how many words can be formed, which begin with N and end with A?
Pick one.
A) 800 B) 720 C) 900 D) 300 E) 100
There are five letters in the given word.   Consider 8 blanks ....   The first blank and last blank must be filled with N and A all the remaining three blanks can be filled with the remaining 3 letters in 6! ways.   The number of words = 6! = 720.   Answer:720
<result>B</result>
Using all the letters of the word "NOKIASED", how many words can be formed, which begin with N and end with A?