It's a normal question which is not related to any of the subject that if any student will not study the particular subject books but he will study the previous years questions book .How much percentage he could expect that he will get? Plz answer my this question which is really really important to me . And as it is compulsory to add any subject and chapter to know that from we are asking the question so as it is a general and normal question so I sending it as a question of any subject and chapter don't be confuse and plz plz plz answer my question as fast as possible