A win, a loss and a draw are three outcomes of a football game: a win scores $$2$$ points, a draw scores $$1$$ point for each of two teams and a loss scores $$0$$ points. Now, $15$ teams run a single round-robin tournament. How many scores in total will all the $15$ teams get? 
Overseas Competition->Knowledge Point->Counting Modules->Permutations and Combinations->Combinations
$15\times14\div2\times2=210$. 