Calculating Total, Average and Grade using Conditional Statements in C Programming

The program is a simple program that calculates the total and average marks of a student based on their marks in five subjects (m1, m2, m3, m4 and m5). The program first takes input of the marks in each subject from the user. Then it calculates the total marks by adding the marks of each subject and calculates the average by dividing the total marks by 5.0. After that, the program checks if the student has passed or failed by checking if the marks in all the subjects are greater than or equal to 35. If the student has passed, then the program also calculates the grade of the student based on the average marks. The program prints the total marks, average marks,result (pass/fail) and grade of the student.

Source Code

/*
School Result Management
1.Five Marks input through the keyboard
2.Find total and average of the given marks.
3.Find the result whether the given marks must be >=35
4.Grade as per the following condition.
    90-100 - A Grade
    80-89  - B Grade
    70-79  - C Grade
    <70    - D Grade
    Fail   - No Grade
 
*/
 
#include<stdio.h>
 
int main()
{
    int m1,m2,m3,m4,m5,total;
    float avg;
    printf("\nEnter 5 Marks : \n");
    scanf("%d%d%d%d%d",&m1,&m2,&m3,&m4,&m5);
    total=m1+m2+m3+m4+m5;
    avg=total/5.0;
    printf("\nTotal   : %d",total);
    printf("\nAverage : %f",avg);
    if(m1>=35&&m2>=35&&m3>=35&&m4>=35&&m5>=35)
    {
        printf("\nResult  : Pass");
        if(avg>=90&&avg<=100)
        {
            printf("\nGrade   : A Grade");
        }
        else if(avg>=80&&avg<=90)
        {
            printf("\nGrade   : B Grade");
        }
        else if(avg>=70&&avg<=79)
        {
            printf("\nGrade   : C Grade");
        }
        else
        {
            printf("\nGrade   : D Grade");
        }
    }
    else
    {
        printf("\nResult  : Fail");
        printf("\nGrade   : No Grade");
    }
    return 0;
}

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Output

Enter 5 Marks :
88
97
89
56
92

Total   : 422
Average : 84.400002
Result  : Pass
Grade   : B Grade

Enter 5 Marks :
34
89
78
90
78

Total   : 369
Average : 73.800003
Result  : Fail
Grade   : No Grade