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
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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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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