SOLUTION: Given the Characters A,B,C,H,I,T,U,V,1,2,3 and 4, how many seven-character passwords can be made? (no repeats are allowed.) How many if you have to us all four numbers as the first

Algebra ->  Permutations -> SOLUTION: Given the Characters A,B,C,H,I,T,U,V,1,2,3 and 4, how many seven-character passwords can be made? (no repeats are allowed.) How many if you have to us all four numbers as the first      Log On


   



Question 1070009: Given the Characters A,B,C,H,I,T,U,V,1,2,3 and 4, how many seven-character passwords can be made? (no repeats are allowed.) How many if you have to us all four numbers as the first four characters in the password?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
12 possible characters.
N=12%2A11%2A10%2A9%2A8%2A7%2A6=3991680
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All four digits first,
N=4%2A3%2A2%2A1%2A8%2A7%2A6=8064