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cinar
Group Title
A password question.
A password is to consist of 10 alphanumeric characters and must include
at least one lower case letter, at least one upper case letter, and at least
one digit.
(a) How many such passwords are possible?
(b) How many are possible if the password must contain at least one
lower case letter, at least one upper case letter, and at least one
digit which is immediately preceded by a letter?
 one year ago
 one year ago
cinar Group Title
A password question. A password is to consist of 10 alphanumeric characters and must include at least one lower case letter, at least one upper case letter, and at least one digit. (a) How many such passwords are possible? (b) How many are possible if the password must contain at least one lower case letter, at least one upper case letter, and at least one digit which is immediately preceded by a letter?
 one year ago
 one year ago

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cinar Group TitleBest ResponseYou've already chosen the best response.0
I guess I solved the first one. 62^10 all possibility ( no number+ no U letter+ no L letter)
 one year ago

cinar Group TitleBest ResponseYou've already chosen the best response.0
(no numbers= L+U, no U= L+N, no L= N+U)
 one year ago

cinar Group TitleBest ResponseYou've already chosen the best response.0
so answer seems 62^10(52^10+36^10+30^10)
 one year ago
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