20 - Sentinel Controlled Program

cout << "Enter age -1 quit" << endl;

    cin >> age;

    while(age!=-1)

    {

        ageTotal=ageTotal+age;

        number++;

        cout << "Enter age -1 quit" << endl;

        cin >> age;

    }

    cout << "number is " << number << endl;

    cout << "total is " << ageTotal/number << endl;