#include <stdio.h>
void main(void)
{
	/* The simple program that finds the class average of  
	   10 students who wrote a quiz using simple while structure */


	int mark, sum, knt;
	float  average; 

	/* initialize the control variable and ohters   */

	sum = 0;
	knt = 0;

	/* test for loop continuation using control variable  */

	while (knt < 10)
	{
		printf("type the %d mark \t:", knt);
		scanf("%d", &mark);
		sum += mark;
		
		/* Now update the control variable */

		knt++;
	}

	average = (float) (sum/knt);

	
	printf("average = %0.2f \n", average);

}