Basic C++ codes

CODES FOR C++ DOCUMENTS , BASED ON OXFORD TEXT BOOK, IX CLASS

1)  TO FIND SIMPLE INTEREST USING PRINCIPAL, TIME PERIOD AND RATE

#include <iostream.h>

     Int main()

     {

        float P, R, T, SI;

        cout << "  Enter the Principal amount = ";

        cin >> P;

        cout << " Enter the Time Period = ";

        cin >> T;

        cout << " Enter the rate of interest = ";

        cin >> R;

        SI = P * R * T/100;

        cout << " The simple interest is = " << SI << "\n"

        return 0;

     }

2) TO  FIND SUM, PRODUCT, AVERAGE

#include <iostream.h>

     Int main()

     {

        Int n1, n2, n3, sum, product;

        float average;

        cout << " Enter the three numbers = ";

        cin >> n1 >> n2 >> n3;

        sum = n1 + n2 + n3

        product = n1 * n2 * n3 

        average = float(sum) / 3;

        cout << " The sum of the three numbers = " << sum << "\n";

        cout << " The product of the three numbers = " << product <<  "\n";

        cout << " The average of the three numbers = " << average << "\n";

        return 0;

     }