Rajan and Rajani are partners in a firm. Their Capitals were Rajan ₹ 3,00,000; Rajani ₹ 2,00,000. During the year ended 31st March 2023, the firm earned a profit of ₹ 1,50,000. Calculate the value of goodwill of the firm by capitalisation of super profit assuming that the normal rate of return is 20%.