Karan and Sarosh invest Rs.3000 and Rs.4000 respectively in a business. If Karan doubles his capital after 6 months, then in what proportion should Karan and Sarosh divide that year's profit?
9:8
Investment of Karan ×time of investment of KaranInvestment of Sarosh ×time of investment of Sarosh = Profit of KaranProfit of Sarsoh
= (3000+6000)×64000 ×12 = 9:8