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Using 4 digits, 5 letters, and 3 special symbols (namely: 1,2,3,4,A,B,C,D,E,#,$,&), how many 3-character passwords are possible where there are no repeated characters.

 Apr 21, 2021
 #1
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12 * 11 * 10 = 1320

 Apr 21, 2021

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