Hello Student

In every exam whether it is class 10 or PUC undergraduate or post graduation for every subjects there is a criteria for qualifying the exam is to get the pass marks that is decided by the authority. In standard education system it is 40% of the total marks. If students try for a good marks in his respective examination and if he secured high marks in the examination that will be his or her benefit for the future. So whether you will achieve pass marks or high marks that is  depend upon your requirement and future Outlook of education and placement.

Hope this will help.