A password is 4 characters long and must consist of 3 letters and 1 of 10 special characters. If letters can be repeated and the

Question

3 years ago

10

special character is at the end of the password, how many possibilities are there?
a. 175,760
b. 456,976
c. 703,040
d. 1,679,616

2 answers:

evablogger [386] · Answer 1 · 2022-09-04T00:08:33+03:00

6 0

Hello,
number of letters:26
In each 3 first position ,we can put 26 possibilities
=>26^3
Last position: 10 posibilities

==>26^3*10 =175 760
Answer A

bezimeni [28] · Answer 2 · 2022-09-04T01:14:35+03:00

5 0

Can be repeated
26 letters
3 places
26*26*26
10 characters
26*26*26*10=175760 posibiities
A