Question

Write a C++ program to input student number and marks for 3 subjects, calculate the total & average of that marks. Then display the student number, subject marks, total & average on the screen.

Answer 1

#include<iostream>

using namespace std;

int main()

{

// declare variables

double num1, num2, num3; double sum, average;

// take input from end-user

cout << "Enter three Numbers :: "; cin >> num1 >> num2 >> num3;

// calculate sum value

sum = num1 + num2 + num3;

// calculate average value

average = sum / 3;

// display result

cout << "Sum = " << sum << endl; cout << "Average = " << average << endl;

return 0;

}