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How many different passwords are possible

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Reference no: EM132227901

You are asked to make a password for a website, the password must be 6 characters in length and may contain upper case and/or lower case letters (upper case letters are considered different from lower case letters), as well as numbers from 0 to 9, but no characters can be repeated

a. How many different passwords are possible?

b. How many passwords are possible if it must contain at least one letter and one number?

c. How many passwords are possible if the password must start with a capital letter?

d. How many passwords do not contain any lowercase letters?

Reference no: EM132227901

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