Hey i hope that you all are well aware about grade system . let me know you that grade system is a evil layed by the education system . It was just created for the parents and students to know their / childs abilities in studies . But it created an difference between learning things or just memorizing things . This was a drawback for the education system which generated a 'major evil known as "Cheating". Children were doing cheating in the schools which was a danger for them . it was just spoiling children's life and Making them be a dumb .