# C Program to Find Sum and Average of N Numbers

In this tutorial, i am going to show you how to find sum and average of n numbers in the c program using for loop and while loop.

## Algorithm and Programs to Find Sum and Average of N Numbers in C

• Algorithm to Find Sum and Average of N Numbers
• C Program to Find Sum and Average of N Numbers using For Loop
• C Program to Find Sum and Average of N Numbers using While Loop

### Algorithm to Find Sum and Average of N Numbers

Follow the below given algorithm to write a program to find the sum and average of n numbers:

• Step 1: Start Program.
• Step 2: Read the term of n numbers from the user.
• Step 3: Then read one by one numbers and calculate sum and average of n numbers using for loop or while loop.
• Step 4: Show sum and average n number.
• Step 5: Stop Program.

### C Program to Find Sum and Average of N Numbers using For Loop

```#include <stdio.h>
int main()
{
int num, sum = 0, n;
float avg;

printf("Please Enter term of n number:-");
scanf("%d", &n);
for(int i = 1; i <= n; i++)
{
printf("Number %d = ", i);
scanf("%d", &num);
sum = sum + num;
}
avg = sum / n;
printf("\nThe Sum of n Numbers     = %d", sum);
printf("\nThe Average of n Numbers = %.2f\n", avg);
}```

The result of the above c program; as follows:

```Please Enter term of n number:-5
Number 1 = 1
Number 2 = 2
Number 3 = 3
Number 4 = 4
Number 5 = 5
The Sum of n Numbers     = 15
The Average of n Numbers = 3.00```

### C Program to Find Sum and Average of N Numbers using While Loop

```#include <stdio.h>
int main()
{
int num, i, sum = 0, n;
float avg;

printf("Please enter term of n numbers :- ");
scanf("%d", &n);
i = 1;
while(i <= n)
{
printf("Number %d = ", i);
scanf("%d", &num);
sum = sum + num;
i++;
}
avg = (float)sum / n;
printf("\nThe Sum of n Numbers     = %d", sum);
printf("\nThe Average of n Numbers = %.2f\n", avg);
}```

The result of the above c program; as follows:

```Please enter term of n numbers :- 5
Number 1 = 1
Number 2 = 2
Number 3 = 3
Number 4 = 4
Number 5 = 5
The Sum of n Numbers     = 15
The Average of n Numbers = 3.00
```

Categories C