How many 4 characters passwords can be created if using 3 letters and 1 digit and repetition is not allowed?

Question

asked Jul 12, 2022 189k views

1 Answer

Saurabh Chauhan · Answer 1 · 2022-07-16T16:02:05+0000

Answer:

156000

Explanation:

We have 3 letters and the repetition is not allowed and we have 26 letters

26*25*24=15600

And 1 digit that has 10 option

15600*10=156000