C++ Exercises: Compute the total and average of four numbers

Last update on December 20 2024 12:20:40 (UTC/GMT +8 hours)

Total and Average of Four Numbers

Write a C++ program to compute the total and average of four numbers.

Visual Presentation:

Sample Solution:

C++ Code :

#include <iostream> // Including input-output stream header file

using namespace std; // Using the standard namespace

int main() // Start of the main function
{
    float n1, n2, n3, n4, tot, avrg; // Declaring float variables for four numbers, total, and average

    cout << "\n\n Compute the total and average of four numbers :\n"; // Outputting a message indicating the purpose of the program
    cout << "----------------------------------------------------\n"; // Outputting a separator line

    cout << " Input 1st two numbers (separated by space) : "; // Prompting the user to input the first two numbers
    cin >> n1 >> n2; // Taking input for the first two numbers from the user

    cout << " Input last two numbers (separated by space) : "; // Prompting the user to input the last two numbers
    cin >> n3 >> n4; // Taking input for the last two numbers from the user

    tot = n1 + n2 + n3 + n4; // Calculating the total of all four numbers
    avrg = tot / 4; // Calculating the average of all four numbers

    cout << " The total of four numbers is : " << tot << endl; // Displaying the calculated total
    cout << " The average of four numbers is : " << avrg << endl; // Displaying the calculated average
    cout << endl; // Outputting a blank line for better readability

    return 0; // Returning 0 to indicate successful program execution
} // End of the main function

Sample Output:

 Compute the total and average of four numbers :                       
----------------------------------------------------                   
 Input 1st two numbers (separated by space) : 25 20                    
 Input last two numbers (separated by space) : 15 25                   
 The total of four numbers is : 85                                     
 The average of four numbers is : 21.25   

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