Hi Dear,
JEE Main paper 1 have total of 90 questions of which Candidates have to attempt only 75 questions from following subjects:
The total marks for JEE main paper is 300 and not 100. Please mention the name of the exam which you are talking about .
You can check the link below for cut offs:
https://engineering.careers360.com/articles/jee-main-marks-vs-rank#JEE-Main-Marks-Vs-Rank-of-Candidates-JEE-Main-2019
Good Luck
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