Cost per square meter of the rectangular floor is Rs. 8. If the total amount spent is Rs. 4320, If the length of the rectangular floor is (x + 7) m and breadth of the rectangular floor is x m. Height of the room is (x - 5) m and the amount spent for painting the wall per meter square is Rs. 6. Find the total cost spent for painting all the sides of the outer wall without deductions.