‘A’ and ‘B’ started a business by investing Rs. 15000 and Rs. 13500, respectively. After ‘x’ months, ‘A’ left the business and ‘C’ joined by investing Rs. 9000. If ratio of profit share of ‘A’, ‘B’ and ‘C’ at the end of the year is 10:27:y, respectively, then find value of ‘x × y’.