Uma, and Vishal entered into a partnership with respective investments of Rs. 14000, and Rs. 16000. After 3 months, Uma withdrew Rs. 5000 while Vishal invested Rs. 5000 more. After 3 more months passed, Wilson joined the business with a capital of Rs. 18000. The share of Vishal exceeds that of Wilson, out of a total profit of Rs. 39000 after one year by: