Question

A passcode can contain any letters A - E and numbers 0 - 4. A passcode...

A passcode can contain any letters A - E and numbers 0 - 4. A passcode contains 5 items, and repetition is allowed. How many passcodes contain at least a 5 or an A? I am confused since 5 is not one of the possible numbers in the passcode.

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Answer #1

So the total number of password contains atleast A or 5 are 40951

There are 5 is not given so don't worry about that

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