Using all the letters of the word "NOKA", how many words can be formed, which begin with N and end with A?
Choose the correct choice from the following options:	A) 8	B) 2	C) 9	D) 3	E) 1
There are five letters in the given word.   Consider 4 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 2! ways.   The number of words = 2! = 2.   Answer:2
<result>B</result>
Using all the letters of the word "NOKA", how many words can be formed, which begin with N and end with A?