// שאלה4                    

using System;

​

bool Order(double num1, double num2, double num3)

{

    return (num2 - num1) == (num3 - num2); 

}

​

double num1 = 8;

double num2 = 7;

double num3 = 6;

bool result = Order(num1, num2, num3); 

System.Console.Write(result);  

​

​