Mathematics
Mathematics, 14.06.2021 18:20, andres2865

How many passwords of 8 character can be made using the list of character {2,5,7,A, B,C, M,Z}, so that (repetition not allowed)
i) it always starts with either ‘2’ or ‘Z’ or ‘M’ and ends with a number
ii) never ends with ‘B’ and starts with a alphabet

answer
Answers: 2

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How many passwords of 8 character can be made using the list of character {2,5,7,A, B,C, M,Z}, so t...

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