Hey Prerna! EAMCET is conducted for a total of 160 marks. Physics and Chemistry carry 40 marks each while Mathematics carries 80 marks. Candidates should obtain at least the minimum qualifying marks in order to get through the examination. The qualifying percentage for EAMCET CBT is 25%, i.e. 40 out of 160. You can prepare for the exam accordingly as the major portion of exam is mathematics which is of 11th and 12th standard mathematics. Hope this may help you.