Percentage of Mark

#include<stdio.h>
#include<conio.h>

void main ()
{
	float m1,m2,m3;
	float per;
	float total;
	//clrscr();
	printf(" enter the marks of m1: ");
	scanf("%f", &m1);
	printf(" enter the marks of m2: ");
	scanf("%f", &m2);
	printf("enter the marks of m3: ");
	scanf("%f", &m3);
	total= m1+m2+m3;
	printf("the total mark is:  %.2f",total);
	per = (total/300)*100;
	avg = (total/3);
	printf(" the percentage mark is: %.2f", per);
	printf("\n the average mark  is: %.2f", avg);
	getch();
}

Calculating Grade

#include<stdio.h>
#include<conio.h>

void main ()
{
	float m1,m2,m3;
	float per,avg;
	float total;
	
	printf(" enter the marks of m1 ");
	scanf("%f", &m1);
	printf(" enter the marks of m2 ");
	scanf("%f", &m2);
	printf("enter the marks of m3 ");
	scanf("%f", &m3);
	total= m1+m2+m3;
	printf("\n the total mark is %.2f ",total);
	per = (total/300)*100;
	avg = (total/3);
	printf("\n the percentage mark is : %.2f ", per);
	printf("\n the average mark  is: %.2f", avg);
	
	///// Grade calculation //
	if(per>=80) printf("\n Grade : A");
	else if(per>=60) printf("\n Grade : B");
	else if(per>=40) printf("\n Grade : C");
	else if(per<40) printf("\n Fail ");

	getch();
}

Example 1: Calculating Percentage of Marks

This example demonstrates how to calculate the percentage of marks obtained by a student in five subjects.

#include <stdio.h>

int main() {
    int m1, m2, m3, m4, m5;
    float percentage;
    
    printf("Enter marks for 5 subjects: ");
    scanf("%d %d %d %d %d", &m1, &m2, &m3, &m4, &m5);
    
    percentage = (m1 + m2 + m3 + m4 + m5) / 5.0;
    
    printf("Total Percentage = %.2f%%\n", percentage);
    
    return 0;
}

Enter marks for 5 subjects: 85 90 88 92 80
Total Percentage = 87.00%

Example 2: Categorizing Result Based on Percentage

This example categorizes the result into divisions based on the percentage calculated.

#include <stdio.h>

int main() {
    int m1, m2, m3, m4, m5;
    float percentage;
    
    printf("Enter marks for 5 subjects: ");
    scanf("%d %d %d %d %d", &m1, &m2, &m3, &m4, &m5);
    
    percentage = (m1 + m2 + m3 + m4 + m5) / 5.0;
    
    printf("Total Percentage = %.2f%%\n", percentage);
    
    if (percentage >= 60) {
        printf("First Division\n");
    } else if (percentage >= 50) {
        printf("Second Division\n");
    } else if (percentage >= 40) {
        printf("Third Division\n");
    } else {
        printf("Fail\n");
    }
    
    return 0;
}

Enter marks for 5 subjects: 70 65 60 75 80
Total Percentage = 70.00%
First Division