How many 4-digit passcodes are possible if no digits are repeated? Consider digits 0-9.

Question

asked Feb 13, 2019 189k views

1 Answer

Kathlyn · Answer 1 · 2019-02-18T03:46:45+0000

So you would set this problem up as 10 x 9 x 8 x 7, since none of the digits can be repeated. There are 5,040 4 digit passcodes possible.