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 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

Question

Quincy

Mathematics

26 March, 17:27

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 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

+1

Answers (2)

Know the Answer?

Koen Odonnell · Answer 1

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

Raven · Answer 2

Can be repeated

26 letters

3 places

26*26*26

10 characters

26*26*26*10=175760 posibiities

A

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

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 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