SOLUTION: Please help me solve this: How many different 10 letter words (real or imaginary)can be formed using the following letters? P R K T S V R J P F

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Question 924181: Please help me solve this:
How many different 10 letter words (real or imaginary)can be formed using the following letters? P R K T S V R J P F

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Re TY
If ALL ten letters were different: 10! would be the number of ways of arranging them
For ex: 5 different books on a shelf: 5! = 120, would be the ways of arranging them
......
When there are duplicates like the following, it cuts down the number of ways...
P R K T S V R J P F (10Letters: 2Ps, 2Rs)
10!/(2!2!) = ways of arranging = 907,200
10! = 10%2A9%2A8%2A7%2A6%2A5%2A2%2A1 = 3,628,800
Nice to have a Calculator with a ! button