Of course you can provided you learn everything that you didn't for this pre-boards exam.

Analyse your this pre-boards paper and see where have you made mistakes. Most of the times students know the concept but make silly mistakes due to which they lose their marks.

If you had some doubts regarding any concepts then clear them now. Once the concept is cleared do practice questions based on them so that you can be confident about it.

If you still have any queries feel free to ask in the comment section down below.

Hey Vanshika

You can defines score more than 90% in your boards. Your preboard marks suggest that you have already gone through 3/4 th of your syllabus thoroughly so I suggest that you now work on topics that have been left behind or are weak.

My best wishes for your future and upcoming exams.