Design a C++ class (you may want to name it studentGrading) that determines the letter grade (A, B, C, D, and F) for a student based on the following grading information:

a. There are two questions; each is assigned a score ranging from 0 to 10 points.

b. There is a mid assignment and a final assignment; each is assigned a score ranging from 0 to 100 points.

c. The overall numerical grade is computed based on the above four assignment with the following weight distribution:

• The final assignment weighs 50%
• The mid assignnent weighs 25%, and

• The two questions together weigh 25%.