Hello,

You haven't mentioned the name of your board, I'm assuming it's pertaining to CBSE board, in case it's some other board you can mention the details in the comment box below, else you can also search our site regarding this

visit our page at https://school.careers360.com/boards/cbse/cbse-previous-year-question-papers-class-12 to access the previous year papers for all subjects along with its solutions,

this will make you acquaint with paper pattern, important topics, weightage etc, through consistent practice you can analyze your preparation level in terms of strength and weakness, and thereby improve upon your speed, calculation, and time management skills.