Person A lent amount x at 8% annum for 4 years and he lent the 1.5x of the principal invested for SI is lent for the compound interest for 2 years and 15% per annum. If the interest earned at compound interest is Rs.1965 more than that of simple interest. If he lent (1/3x +y) principal lent for 2 years and 20% annum earns interest Rs. 1600 less than the y. Find the value of (x + y).