See everything is relative. It may be possible or impossible is all dependent on the relative notions of you. Depending on the characteristic like-

• Efficiency level
• numerical skills
• concepts

your possibility or impossibility depends. In general BITSAT is for the admission to one of the best private institute so you can understand the competition will be good. SO if you wish to crack it then you have to make your concept as well as problem solving skills very good. Thus I would recommend you not to think about the enough or not enough thing and just focus on the examination.

For BITSAT preparation strategy visit the link below:

https://engineering.careers360.com/articles/bitsat-preparation-tips

I hope this answer helps.