1. A software company sells a package that retails for $99. Quantity discounts are given according
to the following table:
Quantity Discount
10-19 20%
20-49 30%
50-99 40%
100 or more 50%
Write a c++ program that asks for the number of units purchased and computes the total cost of
the purchase.
Solution
#include <iostream>
using namespace std;
int main ()
{
int units;
float totalCost;
cout << "Please enter the number of units purchased : ";
cin >> units;
if((units >= 10) && (units <= 19)){
totalCost = (99 * units) - ((99 * units * 20)/100);
cout<<"Total Cost : " << totalCost;
}
else if((units >= 20) && (units <= 49)){
totalCost = (99 * units) - ((99 * units * 30)/100);
cout<<"Total Cost : " << totalCost;

2. }
else if((units >= 50) && (units <= 99)){
totalCost = (99 * units) - ((99 * units * 40)/100);
cout<<"Total Cost : " << totalCost;
}
else if(units >= 100){
totalCost = (99 * units) - ((99 * units * 50)/100);
cout<<"Total Cost : " << totalCost;
}
else{
totalCost = 99 * units;
cout<<"Total Cost : " << totalCost;
}
return 0;
}