Abu and Dhana started a partnership business by investing capitals in the ratio 4 : 3. After six months, Suman joined them with an investment amount equal to that of Dhana. In what ratio should the total profit be distributed among Abu, Dhana, and Suman at the end of one year?

Three partners invested in a business in the ratio 8:5:4. They invested their capital for 3 months, 10 months, and 9 months respectively. What was the ratio of their profits?

A started a business with an investment of ₹21,000 and after a few months, B joined him with an investment of ₹15,000. At the end of the year, the total profit was divided between them in the ratio 12 : 5. After how many months did B join the business?