How Many ways can you get the largest sum adding two-digit numbers if none of the digits can repeat?

Question

How Many different ways can you get the largest sum adding two-digit numbers if none of the digits can repeat?

Answer 1

I don't think we can answer this.

When you say "none of the digits can repeat" do you mean:

A) If we use 98, we can no longer use 9 or 8 at all?

B) We can't do any 'doubles' like 99 or 88?

C) Something else?

Answer 2

120 different ways if you interpret the word "repeat" to mean "be reused."