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22 October, 10:11

A certain website requires that passwords be 4 letters in a row, followed by an integer. How many passwords can be made by following these rules? The password is not case-sensitive.

A. 260,000

B. 456,976

C. 4,112,784

D. 4,569,760

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Answers (2)
  1. 22 October, 10:20
    0
    Infinitely many passwords can be made so the D
  2. 22 October, 10:30
    0
    4 letters in a row have 26^4 outcomes

    10 intergers means 10 outcomes

    26^4*10 = 456976*10=4569760

    so answer D
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