Question
Using all the letters of the word "NOKIA", how many words can be formed, which begin with N and end with A?
Answer: Option B
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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.
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