Average of three numbers Find total marks & percentage Solve mathematical expressions Swap with bitwise operator Demonstrate macro definition C program to read three numbers and find average of numbers. Solution: #include
int main () { int a,b,c; float avg; printf ("\tEnter Three Numbers\n"); printf ("--------------------------------\n"); Average of three number formula Average = Sum/Count 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. 
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Enter the First Float = 22.5 Enter the Second Float = 55.9 Enter the Third Float = 128.7 The Sum = 207.10 The Average = 69.03 Write a C program to find the sum and average of three numbers. This C example accepts three integer values and calculates the sum and average of those Formula to compute the average of three numbers is given below. Algorithm We shall use following algorithm to compute average of three numbers in C++. Start. Read first number to num_1. Read second number to num_2. Read third number to num_3. Initialize average with (num_1 + num_2 + num_3) /3. Stop. ADVERTISEMENT Program C program to compute the average of three given numbers. C Program #include #include void main () { int n1,n2,n3; float avg; clrscr (); printf ("\nENTER THREE NUMBERS: " ); scanf ("%d %d %d",&n1,&n2,&n3); avg= (n1+n2+n3)/3; printf ("\nAVERAGE: %0.2f",avg); getch (); } Output To compute the average of three given numbers using C Average Calculation: The average of the three numbers is computed by adding them together and dividing the sum by the total count of numbers, which in this case is 3. Display Output: Finally, the program displays the input numbers along with the computed average using printf() .
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In this program, we will learn how to find the sum and average of 3 numbers using C Programming language. This program asks the user to enter three integers, then it computes the sum and average of those three numbers using simple arithmetic operators. So, without further ado, let's begin this tutorial. Table of Contents Enter the numbers of elements: 6 1. Enter number: 45.3 2. Enter number: 67.5 3. Enter number: -45.6 4. Enter number: 20.34 5. Enter number: 33 6. Enter number: 45.6 Average = 27.69 Here, the user is first asked to enter the number of elements. This number is assigned to n . How To Write a C program To Find The Average of Three Numbersin This Video.some related videos.4. Write A Program In C To Find a Number of Positive and Negat. It can be defined as − average = sum of all values / number of values Here we shall learn how to programmatically calculate average. Algorithm Algorithm of this program is very easy − 
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Enter Three Numbers : 10 38 23 Sum of Three Numbers is : 71 Average of Three Numebers is : 23.00000 To find the sum and average of three numbers through an Array, first you need to know about the Array. The equation below is one of the more commonly understood definitions of the average: Average = Sum Count where the sum is the result of adding all of the given numbers, and the count is the number of values being added. For example, given the 5 numbers, 2, 7, 19, 24, and 25, the average can be calculated as such:
So, to calculate the average of three numbers, we will first calculate their sum and then divide it by 3. But wait, In C programming language, if you divide an integer value by another integer value for eg. 10/3 the result will also be an integer value. That is the result will be 3.0, not 3.33. To avoid this problem, you can either typecast the. As the average of three numbers can be an integer or a float value, therefore, we will keep the return type of the function a float which will take care of both integer and decimal point numbers. A float value is nothing but a decimal point value. See implementation in the following program: // C program to find the average 
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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. 9. Given the requirements for 1, 1, 2 -> 1; 1, 2, 2 -> 2 then this can be done using integer division. Using // for the integer division and n for number of elements. average = ( a+ b + c +.. + n//2 ) // n. ie sum up all the values and then add a number to deal with rounding. As noted in @Henrik's answer this assumes that all numbers are.
