C Program to Find the Average of Three Numbers (Simple Way)

Here Sum will be obtained by adding three numbers and instead of Count, it will be 3 because here we are taking the average of 3 numbers, if we take the average of 5 numbers, then 5 will come in place of Count.

Now let’s actually start to program.

C Program to Find the Average of Three Numbers (Simple Way)

Algorithm

Program Start
Declaring Variables
Input Three Numbers in Variables
Calculating Average of Three Numbers (average = sum/count)
Displaying the Average of Three Numbers
Program End

Program

//C Program to Find the Average of Three Numbers (Simple Way)

#include<stdio.h>
void main()
{
   int x, y, z;           //Declaring Three Variables
   float avg;
   printf("Enter Three Numbers : \n");    
   scanf("%d %d %d",&x, &y, &z);     //Input Numbers
 
   avg=(x+y+z)/3.0;                  //Calculating Average of three numbers
   printf("Average of Three Numebers is : %f", avg);    
   
}

Output

Enter Three Numbers :
10
2
38
Average of Three Numebers is : 16.666666

Program Explanation

In this program, we first declared three variables x, y, z.
After that created a variable named avg with the help of float data type
In this avg variable, we will store the average of the number three.
After declaring the variables, we got input three numbers from the user and store those values in the x, y, z variables.
After this, we Calculate the average of three numbers using the formula (average = sum/count) and stored its result in the avg variable.
Finally, we printed the stored value in this avg variable on the screen with the help of printf() function.
In this program, when we calculate the average of three numbers, we wrote 3.0 instead of 3, which means the same thing in maths.

C Program to Find the Average of Three Numbers Using Function

To find the average of three numbers through a function, first you need to know about the function. You can read about the function from the link given below.

Function in C

Algorithm

Program Start
Declaring variables
Input Numbers
Calling Function to find Average
Calculating Average
Print the Average of three Numbers
Program End

Program

//C Program to Find the Average of Three Numbers Using Function

#include<stdio.h>
void average(int,int, int);
void main()
{
   int x, y, z;           //Declaring Variables
   printf("Enter Three Numbers : \n");    
   scanf("%d %d %d",&x, &y, &z);     //Input Numbers
 
   average(x,y,z);  //Calling Function to find the Average of three numbers
   
}
void average(int a,int b, int c)
{   
    float avg;
    avg=(a+b+c)/3.0;     
    printf("Average of Three Numebers is : %f", avg);    
}

Output

Enter Three Numbers : 
10
38
23
Average of Three Numebers is : 23.666666

C Program to Find the Average of Three Numbers Using Array

To find the average of three numbers through an Array, first you need to know about the Array. You can read about the Array from the link given below.

Array in C Language

Algorithm

Program Start
Declaring variables
Input Numbers
Calculating Sum
Calculating Average
Print the Average of three Numbers
Program End

Program

//C Program to Find the Average of Three Numbers Using Array

#include<stdio.h>
void main()
{ 
  //Declaring  Variables

   int i, sum = 0, a[3]; 
   float avg;

   printf("Enter Three Numbers : \n");
   for(i=0; i<3; i++)
   {
    scanf("%d",&a[i]);  //Input Numbers
   }

   for(i=0; i<3;i++)
   {
    sum = sum + a[i];  //Input Numbers
   }

   avg=sum/3.0;

   printf("Average of Three Numebers is : %f", avg);

}

Output

Enter Three Numbers :
38
23
38
Average of Three Numebers is : 33.000000

Read More

Conclusion

So friends, in this article, we have made a program to calculate the average of three numbers in three different ways.

C Program to Find the Average of Three Numbers (Simple Way)
C Program to Find the Average of Three Numbers using Function
C Program to Find the Average of Three Numbers using Array

If you have difficulty to understand any program or have any doubts or questions, then tell me in the comment below.

C Program to Find Average of Three Numbers