/*A company requires a program that allows them to enter the quantity of gravel being purchased, the cost per tonne and then calculate appropriate discounts as follows:

Tonnage	Discount
Between 5 and 8	2%
Between 9 and 40	4%
Above 40	6%

The program should exit once the purchase price has been calculated and displayed.
*/

#include "stdafx.h"
#include <iostream>
#include<math.h>
using namespace std;

int main()
{
	int gravel;
	double costper1;

	float discount;
	cout << "enter the quantity of gravel\n";
	cin >> gravel;

	cout << "enter the cost per tonne of gravel\n";
	cin >> costper1;
	costper1 = gravel * costper1;
	if (gravel >= 5 && gravel <= 8) {
		discount = (costper1)-costper1 * 0.02;
		// if condition is true then print the following
		cout << "discounted cost is: " << discount << "\n";
	}
	else if (gravel >= 9 && gravel <= 40) {
		discount = (costper1)-costper1 * 0.04;
		// if else condition is true then print the following
		cout << " discounted cost is: " << discount << "\n";
	}
	else {

		discount = (costper1)-costper1 * 0.06; ;		// if none of the conditions is true
		cout << " discounted cost is: " << discount << "\n";
	}

	return 0;
}