Hi Sahug,

There is no correct way of solving miscellaneous problems of jee mains and advanced level. In fact, we can't tell you the correct way to solve until you let us know the question.

Try solving them again and again and also revise the concepts that are used in them. Persistence is the key to success. Seriously, if you would do these, you will easily get a good college.

To know your other best admission possibilities of Institutes & branches in JOSSA & State counseling as per your percentile, You can use JEE Main College Predictor tool given below

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Feel free to ask doubts in the Comment Section.

I hope this information helps you.

Good Luck!