One item is filed under this topic.
|
|
|
|
|
|
|
|
A three digit code |
2019-07-14 |
|
From Hannah: I have a briefcase with a three-digit code. I can set the code myself using digits 1 through 9, assuming that each digit can only be used once. How many possible codes are there? Answered by Penny Nom. |
|
|
|