Calculate Aggregate marks and Percentage marks

Posted on Apr 2, 2020

If the marks obtained by a student in five different subjects are input through the keyboard, find out the aggregate marks and percentage marks obtained by the student. Assume that the maximum marks that can be obtained by a student in each subject is 100.

Program

#include<stdio.h>
#include<conio.h>
void main()
{
    float marks1, marks2, marks3, marks4, marks5, total, percentage;

	printf("Enter the marks of first subject (out of 100)\t:");
	scanf("%f",&marks1);
	printf("Enter the marks of second subject (out of 100)\t:");
	scanf("%f",&marks2);
	printf("Enter the marks of third subject (out of 100)\t:");
	scanf("%f",&marks3);
	printf("Enter the marks of fourth subject (out of 100)\t:");
	scanf("%f",&marks4);
	printf("Enter the marks of fifth subject (out of 100)\t:");
	scanf("%f",&marks5);

	total = marks1 + marks2 + marks3 + marks4 + marks5;
	percentage = (total * 100) / 500;

	printf("\nAggregate marks = %f",total);
	printf("\nPercentage is   = %f",percentage);

	getch();

}

Output

Enter the marks of first subject (out of 100)   :56
Enter the marks of second subject (out of 100)  :78
Enter the marks of third subject (out of 100)   :89
Enter the marks of fourth subject (out of 100)  :76
Enter the marks of fifth subject (out of 100)   :98

Aggregate marks = 397.000000
Percentage is   = 79.400002

Explanation