Mathematics · Partnership and Series

Evaluate and compare the following three quantities: Quantity I: Ankur invested Rs. 10,000 at a compound interest of 12% p.a. compounded annually and his friend Rani invested Rs. 12,500 at a compound interest of 18% p.a. compounded annually. What is the difference between the interest earned by Ankur and Rani after the completion of 2 years? Quantity II: Find the wrong number in the given series: 2021, 2364, 3695, 5882, 10805. Quantity III: Three persons (M, N, and O) started a business with an initial investment of Rs. 10,000 in the ratio of 2 : 3 : 5 respectively for three years. After three years, O withdrew 20% of his initial investment, and M and N introduced fresh investments of Rs. 4,000 each. After 4 years, the business posted a total profit of Rs. 84,000. What is the difference between the total amount received by M and N after 4 years?