Hi everyone,

I am confused when to multiply by (total!/repeat!) and when not too. I know for combinatorics order does not matter, so that is why we need to get rid of the repeats. I have attached two screenshots with two problems from prepswift. One needed to multiply by (total!/repeat!) and one not. Can anyone tell me why it is that way for the question not needing to multiply? I am thinking that order does not matter in the question as well.

Your help is greatly appreciated,

Anny