Minimum mark required for a person to enter into a college, course etc., is called cut off mark. In Tamil Nadu, the 12th cut off score to enter an engineering college is calculated based on your scores of mathematics, physics and chemistry.
Your Score :
Mathematics - 183
Physics - 151
Chemistry - 175
Cut Off = ( 183 / 2) + (151 / 4) + (175 / 4) = 173