If you are sure about 60% correct, the remaining 40% guessing will lets say get you atleast 10% and that brings you to 70%. I believe that you should be fine. Just hope for the best and good luck.
i took civil and structure PM and i did almost 60% or more and the rest i did it as a guessing and i feel that there are some of them correct and this is the first time to me ,
What do you think i will pass or ...........???