C Exercises: Calculate the average value of the items

C Basic Declarations and Expressions: Exercise-11 with Solution

Write a C program that accepts two item's weight and number of purchases (floating point values) and calculates their average value.

C Code:

#include <stdio.h>

int main() 
{
    double wi1, ci1, wi2, ci2, result; // Declare variables for weights and counts
    
    // Prompt user for weight and count of item 1
    printf("Weight - Item1: ");
    scanf("%lf", &wi1);
    
    // Prompt user for count of item 1
    printf("No. of item1: ");
    scanf("%lf", &ci1);
    
    // Prompt user for weight and count of item 2
    printf("Weight - Item2: ");
    scanf("%lf", &wi2);
    
    // Prompt user for count of item 2
    printf("No. of item2: ");
    scanf("%lf", &ci2);
    
    // Calculate average value
    result = ((wi1 * ci1) + (wi2 * ci2)) / (ci1 + ci2);
    
    // Print the average value
    printf("Average Value = %f\n", result);
    
    return 0;
}

Sample Output:

Weight - Item1: 15                                                     
No. of item1: 5                                                        
Weight - Item2: 25                                                     
No. of item2: 4                                                        
Average Value = 19.444444

Flowchart:

C Programming Code Editor:

Previous: Write a C program that accepts two integers from the user and calculate the product of the two integers.
Next: Write a C program that accepts an employee's ID, total worked hours of a month and the amount he received per hour. Print the employee's ID and salary (with two decimal places) of a particular month.