The total capital of the firm of Sakshi, Mehak and Megha is RS 1,00,000 and the market rate of interest is 15% .The net profits for the last three years were Rs 30,000, Rs 36,000 and Rs. 42,000. Goodwill is to be valued at 2 years purchase of the last 3 years super profits.Calculate the goodwill of the firm.