Aarav and Bhumi entered into a partnership with Rs. 40,000 and Rs. 50,000 for 9 and 7 months, respectively. Bhumi used her entire profit to buy gold, which decreased by 20% in value over a year. Aarav bought a bike with his profit, which depreciated by 10% every year. If after 1 year, the difference between their money is Rs. 35,640, find Aarav’s profit.