Dennis

How many ways can the letters of the word HAPPINESS be arranged. If H must start the word, N must end the word and the P's must be separated? [question from the topic FACTORIAL,PERMUTATION AND COMBINATION ]

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1. Dennis was not a subject taught when I was in school.

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2. 90,720

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3. 90,720 9! / 2! 2! = 362,880/4 = 90,720

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