Question

1. Write a C++ code segment to read 50 temperature values in Fahrenheit and to convert them to Celsius. You convert a Fahrenheit temperature to Celsius by using the following formula: Celsius = 5.0 / 9 * (Fahrenheit - 32).

2.A client has purchased 20 products in a store. Write a C++ code segment to read the unit price and the number of items of each product and to compute and print the total price of all these products.

Answer 1

#include <iostream>

using namespace std;

int main()
{
int n = 5;//reading 5 temparatures, if you want to read 50 then change this 5 as 50.
double f[n];
for(int i=0; i<n; i++){
cout<<"Enter the temperature value in Fahrenheit: ";
cin >> f[i];
  
}
cout<<"Fahrenheit\tCelsius"<<endl;
for(int i=0; i<n; i++){
double c = 5.0 /( 9 * (f[i] - 32));
cout<<f[i]<<"\t"<<c<<endl;
}
return 0;
}

Output:

sh-4.2$ g++ -o main *.cpp                                                                                                                                                                                                                                                

sh-4.2$ main                                                                                                                                                                                                                                                             

Enter the temperature value in Fahrenheit: 50                                                                                                                                                                                                                            

Enter the temperature value in Fahrenheit: 60                                                                                                                                                                                                                            

Enter the temperature value in Fahrenheit: 70                                                                                                                                                                                                                            

Enter the temperature value in Fahrenheit: 80                                                                                                                                                                                                                            

Enter the temperature value in Fahrenheit: 90                                                                                                                                                                                                                            

Fahrenheit      Celsius                                                                                                                                                                                                                                                  

50      0.0308642                                                                                                                                                                                                                                                        

60      0.0198413                                                                                                                                                                                                                                                        

70      0.0146199                                                                                                                                                                                                                                                        

80      0.0115741                                                                                                                                                                                                                                                        

90      0.00957854

Question 2:

#include <iostream>

using namespace std;

int main()
{
int n = 5;//reading 5 products, if you want to read 20 then change this 5 as 20.
double price[n];
int numOfItems[n];
for(int i=0; i<n; i++){
cout<<"Enter theproduct "<<(i+1)<<" unit price: ";
cin >> price[i];
cout<<"Enter the number of items: ";
cin>> numOfItems[i];
  
}
cout<<"Product\tUnit Price\tItems\tTotal Price"<<endl;
for(int i=0; i<n; i++){
cout<<(i+1)<<"\t"<<price[i]<<"\t"<<numOfItems[i]<<"\t"<<numOfItems[i]*price[i]<<endl;
}
return 0;
}

Output:

sh-4.2$ g++ -o main *.cpp                                                                                                                                                                                                                                                

sh-4.2$ main                                                                                                                                                                                                                                                             

Enter theproduct 1 unit price: 2                                                                                                                                                                                                                                         

Enter the number of items: 2                                                                                                                                                                                                                                             

Enter theproduct 2 unit price: 3.3                                                                                                                                                                                                                                       

Enter the number of items: 3                                                                                                                                                                                                                                             

Enter theproduct 3 unit price: 4.4                                                                                                                                                                                                                                       

Enter the number of items: 4                                                                                                                                                                                                                                             

Enter theproduct 4 unit price: 5.5                                                                                                                                                                                                                                       

Enter the number of items: 5                                                                                                                                                                                                                                             

Enter theproduct 5 unit price: 6.6                                                                                                                                                                                                                                       

Enter the number of items: 6                                                                                                                                                                                                                                             

Product Unit Price      Items   Total Price                                                                                                                                                                                                                              

1       2       2       4                                                                                                                                                                                                                                                

2       3.3     3       9.9                                                                                                                                                                                                                                              

3       4.4     4       17.6                                                                                                                                                                                                                                             

4       5.5     5       27.5                                                                                                                                                                                                                                             

5       6.6     6       39.6