Write a C program to input marks of five subjects Physics, Chemistry, Biology, Mathematics and Computer

Problem Name:      Write a C program to input marks of five subjects Physics, Chemistry, Biology, Mathematics and Computer. Calculate percentage and grade according to following:

Percentage >= 90% : Grade A
Percentage >= 80% : Grade B
Percentage >= 70% : Grade C
Percentage >= 60% : Grade D
Percentage >= 40% : Grade E
Percentage < 40% : Grade F

Source Code:

#include <stdio.h>

main()

{

    int phy, chem, bio, math, comp;

    float per;

    printf("Enter five subjects marks: ");

    scanf("%d%d%d%d%d", &phy, &chem, &bio, &math, &comp);

    per = (phy + chem + bio + math + comp) / 5.0;

    printf("Percentage = %f\n", per);

    if(per >= 90)

    {

        printf("Grade A");

    }

          else if(per >= 80)

    {

        printf("Grade B");

    }

else if(per >= 70)

    {

        printf("Grade C");

    }

else if(per >= 60)

    {

        printf("Grade D");

    }

           else if(per >= 40)

    {

        printf("Grade E");

    }

          else

    {

        printf("Grade F");

    }

}

Output: