Using all the letters of the word "NOKIA", how many words can be formed, which begin with N and end with A?  Choose the correct option.
A) 2  B) 4  C) 6  D) 8  E) 10
five letters -&gt; 5 blanks ....   First and last--&gt; N and A   remaining three blanks --&gt; remaining 3 letters in 3!   req no of words ==&gt;6   ANSWER 6
<result>C</result>
Using all the letters of the word "NOKIA", how many words can be formed, which begin with N and end with A?