G-F0RC3
It's an interesting topic. I've no idea how BA select candidates but I'm fairly sure that there will be an element of taking into account your background, even if it isn't until interview as you suggest. Putting myself in an interviewer's shoes, I would expect any decent engineering grad to get near 100% in the maths/physics, anything else suggests carelessness. A few more mistakes from a school-leaver or older candidate that's out of practice might be more understandable. On the other hand, graduates and school-leavers naturally won't have the life-experience/skill based examples of someone in work but might be able to use examples from extra-curricular activities. I would hope/imagine that they take all this into account to form a general picture of each candidate and select accordingly.