 # C program to find sum and average of given 3 numbers

C program to find sum and average of 3 and 5 numbers; In this tutorial, you will learn how to find sum and average of 3 and 5 numbers in c.

## Programs to Find Sum and Average of 3, 5 Number in C

• Algorithm of find sum and average of three or five numbers
• C Program to Find Sum and Average of 3 Number
• C Program to Find Sum and Average of 5 Number

### Algorithm of find sum and average of three or 5 numbers

• Step 1: Start
• Step 2: Read the three or five numbers from the user.
• Step 3: Declared a variables “Avg” and “Sum”.
• Step 4: Calculate sum and average of 3 or 5 numbers using the followig formulas:
• sum = (a+b+c);
• avg = (a+b+c)/3;
• sum = (a+b+c+e+f);
• avg = (a+b+c+e+f)/3;
• Step 5:Display “sum ” and “Avg”.
• Step 6:End.

### C Program to Find Sum and Average of 3 Number

```#include<stdio.h>

int main()

{

float a,b,c,avg,sum;

printf("Please enter 3 numbers ");

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

sum=(a+b+c);
avg=sum/3;

printf("\Sum is  %f",sum);
printf("\nAverage is  %f",avg);

return 0;

}
```

The output of the above c program; as follows:

```Please enter 3 numbers 1 2 3
Sum is  6.000000
Average is  2.000000```

### C Program to Find Sum and Average of 5 Number

```#include<stdio.h>

int main() {

float a, b, c, d, e, s, avg;

printf("Please Enter 5 Numbers :");
scanf("%f%f%f%f%f", &a, &b, &c, &d, &e);

s = a + b + c + d + e;

avg = s / 5;

printf("\nThe Sum is :%f", s);
printf("\nThe Average is :%f", avg);

return 0;
}
```

The output of the above c program; as follows:

```Please Enter 5 Numbers :1 2 3 4 5
The Sum is :15.000000
The Average is :3.000000```

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