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 ]

Question

Reed · Accepted Answer

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

Martin · Answer

90,720

Martin · Answer

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