Question

using c++ program please solve all of the following in a simple method with showing the steps as a code .

Q.15 Write a C++ program to define two variables and initialize them with the values 123.456 and 76.543 Then display the sum and the difference of these two numbers on screen. The display will be: Sum = value of the sum Difference = value of the difference

Answer 1

Program:

#include<iostream>

using namespace std;

void result(float a,float b); //Function Declaration

main() //Main function

{

float num1=123.456; //Variable declaration and assignment

float num2=76.543;

result(num1,num2); //Function call

}

void result(float a,float b) //Function Definition

{

cout<<"Sum = "<<a+b<<endl; //Printing the sum value as output.

cout<<"Difference = "<<a-b<<endl; //Printing the difference value as output

}

The screenshots of the program execution and the output are attached for reference.

1 #include<iostream> 2 using namespace std; 4 void result(float a, float b); 6 main() 7 8 9 float num1=123.456; 10 11 float num2=76.543; 12 13 result(num1, num2); 14 15 } 16 void result(float a, float b) 17-{ 18 19 cout<<"Sum="<<a+b<<endl; 21 cout<<"Difference="<<a-b<<endl;

Output:

Sum=199.999 Difference=46.913 - Program finished with exit code 0 Press ENTER to exit console. I