Write a program to sum and average of 3 numbers in c

#include<stdio.h>

#include<conio.h>

void main()

{

int a,b,c,sum;

float average;

clrscr();

printf("Enter three numbers\n");

scanf("%d%d%d",&a,&b,&c);

sum=a+b+c;

average=sum/3.0;

printf("Sum=%d\nAverage=%f\n",sum,average);

getch();

}

Output:

Enter three numbers

1

4

5

Sum=10

Average=3.333333