4. Prahalad invests a sum of money in a bank and gets Rs 3307.5 and Rs3472.87 in and 3rd years respectively. Find the sum he invested.[[http://karnatakaeducation.org.in/KOER/en/index.php/Mathematics_Solved_problems#Banking]] | 4. Prahalad invests a sum of money in a bank and gets Rs 3307.5 and Rs3472.87 in and 3rd years respectively. Find the sum he invested.[[http://karnatakaeducation.org.in/KOER/en/index.php/Mathematics_Solved_problems#Banking]] |