How much does this preboard scale on boards level? + Rant

Got cooked so bad, I'm expecting like 72/80 vo bhi zaada hogya, time was written as 3 hours but there was also a mid term test which was like 90% calculations from the surface area chapter and took up atleast half an hour, then I started with section b left the 22nd question for later but never got to it, section c was easy, section d too but I never got to fully complete the second part of 35th question and then case studies were easy. Did the first page of mcqs in like 10 seconds on each, I had like a lot less time left by the 15th so I just decided to write anything. But surprisingly everyone else said it was easy one of the guys in my examination room completed his in like 1.5 hours along with mid term.