How many distinct words can be created using all the letters of the word "NOKIA" such that the word starts with 'N' and ends with 'A'?

Explanation

The word "NOKIA" consists of 5 letters. We need to form words that begin with 'N' and end with 'A'. Fixing 'N' at the start and 'A' at the end leaves 3 positions to be filled by the remaining letters: O, K, and I. These 3 letters can be arranged in 3! = 6 different ways. Therefore, the total number of such words is 6.