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

## C++ Basic: Exercise-30 with Solution

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

**Flowchart: **

**C++ Code Editor:**

**Previous:** Write a program in C++ to compute quotient and remainder.

**Next:** Write a program in C++ to input a single digit number and print a rectangular form of 4 columns and 6 rows.

**What is the difficulty level of this exercise?**

**Weekly Trends and Language Statistics**- Weekly Trends and Language Statistics