How many different passwords of size 6 can be formed using English alphabet characters if the...
How many different passwords of size 6 can be formed using English alphabet characters if the first letter must be a capital letter and the remaining letters must be lower case?
a) 26 * C(25, 5)
b) P(26, 5)
c) 26 * P(26, 5)
d) 26 * C(26, 5)
e) P(26, 6)
Homework Answers
Solution:- option d) 26 * C(26, 5)
Explanation
First letter must be capital letter = 26
remaining 5 letter are lower case = 26C5
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