I am not sure what is going to be passing. I send in the scores (numbers) and the administration decides the grades (including passing). It use to be 50 in 100, but they have gone as low as 40 in 100. One of the things they is used to decide is that only 10% (10 in 100) of all sections together can get "A". That's what the university generally follows. Likewise, they try not to have too many failures.