You have to score 50% as aggregate in each subject to pass as
Midterm + Academic activities + Final term = 50%
So marking scheme of exams is based on the following rule given below and on the basis of this rule total final grade or CGPA is calculated.
Midterm + [Assignment, Quiz, GDB] + Final term = 50% = Pass
Midterm + [Assignment, Quiz, GDB] + Final term = Less than 50% = Fail
Don’t Worry if the midterm percentage is below 20% you are not fail. You can pass your subject by working hard in the final term and academic activities. Previous 20% rule is not applicable now.