Using all the letters of the word "NOKIA", how many words can be formed, which begin with N and end with A? Pick.
A) 7	B) 6	C) 4	D) 3	E) 2
Explanation:   There are five letters in the given word.   Consider 5 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 3! ways.   The number of words = 3! = 6.   Answer: 6
<result>B</result>
Using all the letters of the word "NOKIA", how many words can be formed, which begin with N and end with A?