Attempting each question

Hi guys!

I have a question? Based from your wxperience and from experience of your friends, is it possoble to write everything, but indeed everything in 4 out of 5 questions, gain 80 marks in total but not attempt one question at all?

Would it mean direct fail or there is still a chance to pass?

Unfortunatelly, I don’t know HOW could it happen, but I simply didn’t see one question at all (I don’t know what was in my head at the moment), but as I learned a lot for the exam, I solved 4 questions in total. I was even surprised realising how well did I solve it in given time. At the end I ralised WHY did I have enough time, and now I want to shoot myself 🙁

Could you please give me advice – is there a possibility that I can still make a pass?

Thank you very much for your answers.