Bro, first the question papers will be made public by CBSE. The answer keys will be available after that.

CBSE will release official JEE Main 2018 papers answer key from April 24-27.

Candidates can check the answer key of JEE Main 2018 from below provided links:-

Link for all sets question paper and answer key:- https://engineering.careers360.com/articles/jee-main-answer-key

Https://engineering.careers360.com/articles/jee-main-paper-2-answer-key

 The correct responses in the answer key have to be compared to the response sheet of yours.

You need to follow the official marking scheme to calculate the probable scores of JEE Main 2018.

Correct answer:- +4 marks

Wrong answer:- -1 mark

All the very best and good luck.

Dear Narendra,

You can check the answer keys from the given below link

https://engineering.careers360.com/articles/jee-main-answer-key

Good luck!!