Every university has a different entrance examination for admission. The concepts have to be clear and one should practise things on a regular basis. Solving past years’ examinations gives you quite an idea about the structure of exams by different universities. You get to know about the type of questions asked, their difficulty level, and most importantly, this routine gives you an idea as to where you stand among your peers. One should go through the syllabus and structure of the exam and then prepare accordingly.