You will have to wait for the declaration of the results because a lot depends on the rank that  you get and how many students are contesting along with you.

AP EAMCET 2018 cut off Marks will be will be given by the JNTU (Jawaharlal Nehru Technical University) of after the result declaration as JNTU is Head Authority. The merit list for AP EAMCET 2018 will be prepared on the basis of the Number that candidates scored in the exam and number of candidates appeared in the exam. The cut off marks and the merit list will be provided by each and every course differently to make it easy for candidates to check their rank according to course wise.

However, this is the previous year's cutoff which can provide a rough idea of this year's cutoff (i.e., +/- 20 marks)

General-45

OBC-40

SC/ ST- 35