C Exercises: Calculate the average marks of mathematics of some students

C Basic Declarations and Expressions: Exercise-44 with Solution

Write a C program to calculate the average marks of mathematics of some students. Input 0 (excluding to calculate the average) or negative value to terminate the input process.

Pictorial Presentation:

Sample Solution:

C Code:

#include <stdio.h>
int main() 
{
	int marks[99], m, i, a=0, total=0;
	float f;
	printf("Input Mathematics marks (0 to terminate): ");
	for(i = 0; ; i++) 
	{
		scanf("%d", &marks[i]);
		if(marks[i] <= 0) {
		break;
		}
		a++;
		total += marks[i];
	}
	f = (float)total/(float)a;
	printf("Average marks in Mathematics: %.2f\n", f);
	return 0;
}

Sample Output:

Input Mathematics marks (0 to terminate): 10                           
15                                                                     
20                                                                     
25                                                                     
0                                                                      
Average marks in Mathematics: 17.50

Flowchart:

C programming Code Editor:

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