Hello,

I hope you are doing well, In BITSAT There are 150 question. Each question carries 3 marks so total marks will be 450 Marks. For every wrong answer 1 marks will be deducted. I will make it simple so that you can understand suppose you attempted 2 questions. One is correct and the other is wrong. so for correct one you will get 3 marks and for the wrong one 1 marks will be deducted. so your final score would be 2 marks. If you don't attempt the question no negative marking would be applied in that question.

I hope you find this information helpful. I wish you all the best for your future.

Good Luck