I do not want to write it by hand, please .. I want words

Case 7 Hilal and Hythem are the partners in a firm sharing profits in the ratio of 4:3. They admitted Siraj as a new partner. The profit sharing ratio of new firm will be 2:3:1. a) Calculate the gain or sacrifice of old partners. (2 marks) b) Why is interest allowed on partner's capital? Is it allowed even if the operations resulted to a loss