Hey,

The time to complete your goal only depends upon your understanding and concentration power and how fast you learn things. The time to complete these 10+ mock tests and 10 pyqs can be 20 days or more than this. But i would suggest you to start it after your basics are done and you have gone through every part of the syllabus. You must try practicing these mock tests after you concepts are clear. Also practice pyqs and mock tests 2 months before the exam.

Dear student,

It's totally depends on you. If you are a well prepared student and has good grip on concepts then it may take a week or two time for you to complete it, this is just estimated one. It also depends on how many hours you'll spend on solving the papers every day.

If you can complete solving a paper in 3 hours or 5 hours you may complete 10 previous year's question papers in 30 hours or 50 hours and 10 mock tests in 30 hours or 50 hours. This is just general information but you may take more or less time than this.

If you are average or less than than and not good at topics then you require more time to solve the papers like three to four weeks.

You can go through below mentioned link to check previous year's question papers and solutions of JEE Mains.

https://engineering.careers360.com/articles/jee-main-question-papers

I hope this information was helpful to you.

Good Luck!!