YOu only have to get 5 questions wrong to fail in the Met exam so it be a shame to get one wrong becasue it is out of your hands?
I'm afraid that the allowance of questions that you can get wrong will indeed be at least partially used up by b*ll*cks of this sort.
Personally I aim at getting
every question right, then I pass the exam because the number of b*ll*cks questions is actually sufficiently small that it doesn't use up your entire allowance.