Question

A safe has a 4-digit lock code that does not include zero as a digit and no digit is repeated. What is The total number of outcomes is

Answer 1

Answer:4*3*2*1

Step-by-step explanation:

Answer 2

9 single digits and since you can’t repeat any, and you need 4 digits in total it’s going to be 9*8*7*6 = 3,024