C Program To Find The Total And Average Of The Marks

We will write a program to get marks of five subject from the user and according to that calculate the total marks obtained as well as the percentage.

C Program to Calculate Total Marks and Average

#include<stdio.h>
#include<conio.h>
void main()
{
 int s1,s2,s3,s4,s5,t;
 float p;
 clrscr();

 printf("\n Enter marks of 5 subjects each out of 100 ");
 printf("\n\n ********************************************");

 printf("\n\n Maths = ");
 scanf("%d",&s1);

 printf("\n Science = ");
 scanf("%d",&s2);

 printf("\n English = ");
 scanf("%d",&s3);

 printf("\n History = ");
 scanf("%d",&s4);

 printf("\n Geography = ");
 scanf("%d",&s5);
 printf("\n ********************************************");

 t=s1+s2+s3+s4+s5;  //Total
 printf("\n Total marks = %d/500",t);

 p=t/5;  //Percentage
 printf("\n\n Percentage = %.2f",p);
 printf("\n ********************************************");

 getch();
}

Output:

Further, we can extend this program and give grades according to the marks obtained, also we can write the same program using the function.

C Program To Find Total Marks And Percentage Using Function 

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

 int total();
 int percentage();
 int sum;

 void main()
  {
   int t;
   float p;
   clrscr();

   t=total();
   printf("\n Total marks = %d/500",t);

   p=percentage();  //Percentage
   printf("\n\n Percentage = %.2f",p);
   printf("\n ********************************************");

   getch();
  }

 int total()
 {
   int s1,s2,s3,s4,s5;

   printf("\n Enter marks of 5 subjects each out of 100 ");
   printf("\n\n ********************************************");

   printf("\n\n Maths = ");
   scanf("%d",&s1);

   printf("\n Science = ");
   scanf("%d",&s2);

   printf("\n English = ");
   scanf("%d",&s3);

   printf("\n History = ");
   scanf("%d",&s4);

   printf("\n Geography = ");
   scanf("%d",&s5);
   printf("\n ********************************************");

 sum=s1+s2+s3+s4+s5;  //Total

 return(sum);
}

int percentage()
{
 return(sum/5);
}

This way we can write a c program to calculate total marks and percentage.