Solution:-

      i = 10;

      i = (++i)/(i++)

      ++i is preincrement the value of i before executing the statement. 

      i++ is post increment the value of i after executing the statement     

Here ++i = 11

      i = (++i) / (i++);  // 11/11 = 1 

           After executing the above statement post increment operator (ie i++)

           is excuted. Becaz of that i's value is incremented to 2.