Write a program that can compute the average of a student\'s class containing 5

Question

Write a program that can compute the average of a student's class containing 5 categories (Homework, midterm exam, final exam, project and unit test.)

Grading Scale:

Homework: 10%
Midterm exam: 10%
Final exam: 25%
Project: 15%
Unit test: 40%

A:90-100

B:80-89

C:70-79

D:60-69

F:<60

The program must display the grade for each category, the computed
overall average and the resulting letter grade.

Must Implement your solution using a class.

----------------------------------------------

Homework average (10%): 93.3

Unit Tests average (40%): 83.8

Midterm Exam (10%): 81.0

Final Exam (25%): 74.0

Project (15%): 100.0

--------------------------------------

Computed Overall Average: 84.5 ==> letter grade:B

Explanation / Answer

#include<iostream.h>
#include<conio.h>
class exam
{
public:
   void cal(double h, double mt, double fe, double pr, double ut)
   {
       double hp,mtp,fep,prp,utp;

       hp=h*10/100;
       mtp=mt*10/100;
       fep=fe*25/100;
       prp=pr*15/100;
       utp=ut*40/100;
       char gr;
       double av=hp+mtp+fep+prp+utp;

       //double av=tot/5;
       if(av>=90 && av<=100)
       {
           gr='A';
       }
       if(av>=80 && av<=89)
       {
           gr='B';
       }
       if(av>=70 && av<=79)
       {
           gr='C';
       }
       if(av>=60 && av<=69)
       {
           gr='D';
       }
       if(av<60)
       {
           gr='F';
       }
       cout<<"Homework average (10%): "<<hp<<endl;
       cout<<"Unit Tests average (40%):"<<utp<<endl;
       cout<<"Midterm Exam (10%): "<<mtp<<endl;
       cout<<"Final Exam (25%): "<<fep<<endl;
       cout<<"Project (15%): "<<prp<<endl;

       cout<<"Computed Overall Average: "<<av<<" ==> letter grade:"<<gr;
   }
};

void main()
{
   exam o;
   o.cal(90,90,90,90,90);
   getch();
}

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