Strafer - I will put my hands up and admit that this was a genuine mistake, not just a typo - the number I was looking for was 200, as Gonville says, but I just had a brain-fart.
However, I think that strafer is correct in that 150 is the minimum for an integrated course, although I have to admit to knowing very little about integrated courses so I may well be wrong. But I think that's probably far more detail than Dewdrop wanted to know.