A and B started a business partnership by investing Rs. 20,000 and Rs. 15,000 respectively. After six months, C joined the partnership with an investment of Rs. 20,000. If the business earns a total profit of Rs. 25,000 at the end of 2 years from the start, what amount will B receive as his share of the profit?

Explanation

The profit-sharing ratio is based on the product of each partner's investment and the time their capital was invested. A invested Rs. 20,000 for 24 months, B invested Rs. 15,000 for 24 months, and C invested Rs. 20,000 for 18 months (since C joined after 6 months). Therefore, the ratio is A:B:C = (20000 * 24) : (15000 * 24) : (20000 * 18) = 4:3:3. B's portion of the profit is (3/10) of Rs. 25,000, which equals Rs. 7,500.