Just treat it as 5 ties. The fifth one is inviable.
I will simplify the question.
If you have 3 shirts and 2 pairs of pants. How many outfits can you make? (using 1 shirt and one pair of pantspants)
Please answer asker-guest , and please no one else butt in.
If guest does not answer then please noone else answer either unless you are actually trying to learn from this question.