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C Program to Find the Sum and Average of Student

08:08:00 
C Program to Find the Sum and Average of Student


#include<stdio.h>
#include<conio.h>
void main()
{
    float m1,m2,m3,avg;
    int grade;
    printf("Enter the marks\n");
    scanf("%f%f%f",&m1,&m2,&m3);
    avg=(m1+m2+m3)/3;
    printf("Average = %f\n",avg);
    if(avg>=85)
        grade=1;
    else if(avg>=70)
        grade=2;
    else if(avg>=60)
        grade=3;
    else if(avg>=50)
        grade=4;
    else if(avg>=40)
        grade=5;
    else
        grade=6;
    switch(grade)
    {
    case 1:
        printf("grade is A");
        break;
    case 2:
        printf("grade is B");
        break;
    case 3:
        printf("grade is C");
        break;
    case 4:
        printf("grade is D");
    case 5:
        printf("grade is E");
        break;
    case 6:
        printf("FAIL");
        break;
    }
    getch();
}