A and B started a business with their capitals in the ratio 9 : 13, respectively. They agreed to share the profit in the ratio of their investments. C joins the business later with the condition that A, B and C will share the profit equally. For this, C pays a sum of ₹3,08,000 as a premium for goodwill. What will be the share of B in this premium amount?

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?