A, B and C started a business investing ₹2,410, ₹1,170 and ₹700, respectively. If B's share in the profit earned by them is ₹1,092, what is the difference in the profit (in ₹) earned by A and C?

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?