Question

Write in C++ program and write a function named computeCostPlusGST. It should accept two double type variable as arguments. The first argument should be named cost; the second argument should be named rate. The argument rate should have a default value of 0.15. The function should return by value the value of cost plus the product of cost and rate

Answer 1

#include <iostream>

using namespace std;

//function to calcuate the cost plus GST
double computeCostPlusGST(double cost, double rate = 0.15)
{
//calculate cost plus GST and return
return cost+cost*rate;
}

int main()
{
//variable declaration and initialization
double cost = 25000;
  
//function calling
double costAndGST = computeCostPlusGST(cost);
  
//display the result
cout<<"The total amount(cost+GST) = "<<costAndGST;

return 0;
}

OUTPUT:

The total amount(cost+GST) = 28750