JEE Main result will be declared after both the attempts for JEE Main gets over, For your reference, You can assume Previous years cutoffs, I would say that anything above 90 will make You eligible to appear in JEE Advanced Provided that Paper follows the Previous year's trends in terms of Difficulty level of the exam.

Hey.

Here is the qualifying marks of 2017 and 2018 respectively out of 350 in order to qualify JEE mains in each year. You can expect a similar  range of qualifying cut off in 2019 too.

General  81, 74

OBC-NCL  49, 45

 SC  32,29

 ST  27,24