A started a business by investing ₹50,000. After 6 months B joined her by investing ₹75,000 After its 6 months C joined with ₹1,25,000. What is the ratio of profit shared after 2 years among A, B and C?

P, Q and R share the profit in a business in the ratio of 1/4, 1/6 and 7/12. Due to some reason, R takes retirement. What will be the new profit sharing ratio for P and Q if they retain their old ratios in the new shares of profit?

A started a business with a certain capital. After 3 months A left the business and B joins the business and remains in business. If the ratio of the profit at the end of the year is 5: 6 and the initial investment of A is Rs. 6000, then the investment of B is