Hello student the entrance exam questions for admission in bsc hons is of class 12th level as per the institute instruction problems drawn mostly from the following topics: arithmetic, algebra, geometry, trigonometry, and calculus.
You can refer some sample papers or previous year questions for practice that may help you for sure.
I'm providing you the link below from where you can download it for free.

https://www.cmi.ac.in/admissions/syllabus.php
Feel free to comment if you have any doubt
Good luck

CMI Chennai

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