Question

CSIT 575 – Programming Fundamentals for Computer Science Lab #2C
Objectives

To learn to code, compile and run a sequential program

To learn how to obtain a program listing and output printout

Assignment
Plan and code a program to do the following:  Calculate the total cost of an automobile repair.  Use the following rates:
    Labor charges            $35 per hour
    Tax on parts and supplies    9%
Input
Your program should prompt the user to enter the customer’s name, the number of hours of labor and the cost of parts and supplies.
Output
Output the entered values and the calculated amounts.  A sample follows. Format your output to have 2 decimal places with all numbers aligned to the right side of the column. Sample output:
    Customer name                       Jones   
    Hours of labor    4.50
    Cost for labor    157.50
    Parts and Supplies    97.00
        Tax         8.73
        Total Amount Due        263.23   
Constant
Use a constant definition for the tax rate and the labor charge per hour.
Output the Customer name, hours of labor, cost for labor, cost of parts and supplies, tax and total.  Note that the left column is left justified, and the right column is right justified with the decimal point in the monetary amounts aligned.
Turn in
Program listing and program output. Label all output clearly.
Be sure your output file contains user prompts and what was entered by the user .in addition to the results of your program processing. Run with above listed data. The instructor will give you additional data to test.
Program documentation and the first line of your output file should include:

Answer 1

Code

#include <stdio.h>

// constants

const int labor_charges = 35;
const float tax_rate = 0.09;

int main()
{
float cost_parts,hours;
float total,total_tax,cost_of_labour;
char name[30];
  
//Input from user
  
printf("Enter customer's name: ");
scanf("%s",&name);
printf("Enter Hours of labor: ");
scanf("%f",&hours);
printf("Enter cost of parts and supplies: ");
scanf("%f",&cost_parts);
  
//Caluculation
//labour hours * hourly charge
cost_of_labour = hours*labor_charges;
  
//9% tax for Parts and Supplies
total_tax = cost_parts * tax_rate;
  
//Total cost
total = cost_of_labour + cost_parts + total_tax;
  
//Print outout
printf("Customer name %s",name);
printf("\nHours of labor %f",hours);
printf("\nCost for labor %f",cost_of_labour);
printf("\nParts and Supplies %f",cost_parts);
printf("\nTax %f",total_tax);
printf("\nTotal Amount Due %f",total);
return 0;
}

Source code

Output