Dear Aspirant

Hope this will hell you

For scoring 85 percentile in jee mains you need to score marks between 57-68 .If you are satisfy with this score then you can cover important topics in Jee main and which have maximum weight.Solve previously year problems as much as you can .

Here is the link mentioned below you can check marks vs percentile by visiting the link

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-marks-vs-percentile/amp

Thanks

All the very best