Program to accept roll number and marks of three subjects from user and print total marks, average and grade.| Using C language| C Program series 13|

👨‍💻Program to accept roll number and marks of three subjects from the user and print total marks, average, and grade.

Code:

    //Program to accept roll number and marks of three subjects from the user and print total marks, average, and grade.

    #include<stdio.h>

    main()

    {

        printf("Program to accept roll number and marks(out of 100) of three subjects from the user and print total marks, average & grade.\n\n");

       

        int rollnumber;

        float mark1,mark2,mark3,total,average;

       

        printf("Enter the Student's Roll no.:");

        scanf("%d",&rollnumber);

        printf("Enter the subject-1's MARKS :");

        scanf("%f",&mark1);

        printf("Enter the subject-2's MARKS :");

        scanf("%f",&mark2);

        printf("Enter the subject-3's MARKS :");

        scanf("%f",&mark3);

       

        total=mark1+mark2+mark3;

        average=total/3;

       

        printf("TOTAL:%.1f/300.0\n",total);

        printf("AVERAGE(PERCENTAGE):%.2f\n",average);

       

       

        if(average>80)

        {

            printf("GRADE:A (PASS)");

        }

        else if(average>60&&average<=80)

        {

            printf("GRADE:B (PASS)");

        }

        else if(average>40&&average<=60)

        {

            printf("GRADE:C (PASS)");

        }

        else if(average>=33&&average<=40)

        {

            printf("GRADE:D (PASS)");

        }

        else

        {

            printf("GRADE:E (FAIL)");

        }

    }

Output:

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