Question 1176458
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Number of possible passwords = 9*9*26*25 = 52650.    <U>ANSWER</U>
   

   Any of 9 digits from 1 to 9 in the 1st position.

   Any of remaining 9 digits in the next position.

   Any of 26 letters in the 3rd position.

   Any of remaining 25 letters in the 4th position.
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Solved, answered, explained and completed.