. I have seven numbers: 1, 2, 3, 4, 5, 6, 7. I want to make five digit numbers which are multiples of 5. (Note: 5, 10, 1
Posted: Fri Dec 24, 2021 10:12 am
. I have seven numbers: 1, 2, 3, 4, 5, 6, 7. I want to make five digit numbers which are multiples of 5. (Note: 5, 10, 15, 20, ... are multiples of 5.) If I use one number only once, how many different numbers can I make?