Question 555629
A password to a computer is to consist of 2 lower case letters followed by three digits. How many different passwords are possible if repetition of letters and numbers is not permitted?
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The 1st letter is 1 of 26, the 2nd is 1 of 25.
The 1st digit 1 or 10, then 9, then 8.
--> 26*25*10*9*8 = 468000
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