Hans is choosing a 2- letter password from the letters A, B, C, D, and E. The password cannot have the same letter repeated in i

Question

Ulleksa [173]

3 years ago

6

Hans is choosing a 2- letter password from the letters A, B, C, D, and E. The password cannot have the same letter repeated in i

t. How many such passwords are possible?

Mathematics

2 answers:

Debora [2.8K] · Answer 1 · 2022-06-04T05:44:35+03:00

Debora [2.8K]3 years ago

7 0

25 passwords possible

Alika [10] · Answer 2 · 2022-06-04T03:35:54+03:00

Alika [10]3 years ago

3 0

There are 5 letters

there are 5 possibilities for the first letter, and 4 possibilities for the second letter after the first letter is used up

so 5 * 4 = 20 possibilities