Ganesha, Harish and Raghu started a business with investments of Rs.15000, Rs.18000 and Rs.21000. At the end of the one year, they earned a total profit of Rs.5400. Find the respective shares of Ganesh, Harish and Raghu in the profit (in Rs.) a)1500,1800,2100 b)1360,1800,2240 c)1750,2100,2450 d)1890,2100,2310