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Your bank has decided to allow English alphabetic characters (upper or lower case are permitted) as well as any numeric digit in your PIN. How many possible PINs are there when that change is made?

Respuesta :

MechEngineer

Answer:

14776336

Step-by-step explanation:

Suppose that your PIN has 4 slots. Now there are 26 (upper-cased letters) + 26 (lower-cased letters) + 10 (digits) = 62 options for the 1st slots, 62 options for the 2nd slots, and so on. Therefore the total number of possible combination of PIN for all 4 slots are

[tex]62^4 = 14776336[/tex]

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