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A school gives each student a password for their Canvas page. Each password begins with two letters and ends with two numbers.
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A school gives each student a password for their Canvas page. Each password begins with two letters and ends with two numbers.
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Question 1176458: Hi! I really need your help with this question!
A school gives each student a password for their Canvas page. Each password begins with two letters and ends with two numbers. Zero cannot be the first digit. If each letter and digit can only be used once, how many possible passwords can the school create?
Thank you so much! Very appreciated Answer by ikleyn(52794) (Show Source):
Number of possible passwords = 9*9*26*25 = 52650. ANSWER
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.