Exams finally ended!!!

had engineering materials just now and my brain is bursting cuase hav to rmb everything>.<
but lucky all that i rmb came out or shld i say the paper that they giv for the revision(not past yr paper just a worksheet call revision) almost all the qn came out i was like-.-"..... there's this rule in np that u must w8 45mins after u start then can leave and half the class like 30mins finish the paper and ask teacher can go then they say cannot but once 45mins reach more than half the class left not sure whether to easy or to little long ans qn cause got like 15 mcq 10short ans qn......