Mohan and Sohan invested ₹3,000 and ₹4,000 respectively in a property. After 6 months Sohan withdraws his investment. If at the end of the year the total profit is ₹540, then what is the profit earned by Mohan?

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?