Question

Q2.     Write a program that will compute the total sales tax on a $45 purchase. Assume that the state sales tax is 4% and county sales tax is 2%.

Declare a variable called price , of datatype double

Ask the user to enter a price and the user inputs in the purchase price.

Use setprecision(2) like Q1.

in C++

Answer 1

Hi,

As per the requirement, putting below the code of program that will compute total sales tax on purchase value assuming 4% state sales tax and 2% country sales tax. Also setprecision(2) is implemented. As no information is available about Q1, setprecision(2) is implemented as per the standard way.

*********************** Code Begins ********************************

#include <iostream>
#include <iomanip>
using namespace std;
double calculate_total_tax(double price)//Function to calculate Total Sales Tax
{
   double state_sales_tax, country_sales_tax;
   double total_sales_tax;
   state_sales_tax = (price * 4) / 100; //As State Sales Tax is 4%
   country_sales_tax = (price * 2) / 100; //As Country Sales Tax is 4%
   total_sales_tax = state_sales_tax + country_sales_tax;
   return total_sales_tax;
}
int main()
{
   double price;
   double total_sales_tax;
   cout << "Enter price => $";
   cin >> price; //Taking purchase price from user
   total_sales_tax = calculate_total_tax(price); //Calling calculate_total_tax function
   cout << fixed << showpoint;
   cout << setprecision(2);
   cout << "Total sales tax on $" << price << " purchase is $" << total_sales_tax;  
   return 0;
}

*********************** End of Code ********************************

Also as mentioned in question, putting screenshot of output calculated using $45 as purchase price.

That's all for now.

Open for comments, queries if any.

Thank you.