40percentile means how many marks
Hello Aspirant,
The calculation of the marks & rank would be difficult based on your percentile. 869010 candidates appeared for JEE Main January session 2020. Using the formula given below
(100-your total percentile) X 869010/100
Your probable rank will be 52,1406
I would suggest you to appear for JEE Main April session again which application form is expected to come out on 7th February, 2020
Good Luck!