(financial mathematics) Sultan has funds invested at an annual interest rate of i. At the end of the first year Sultan withdrew 325% of the interest he earned. on At the end of the second year Sultan withdraws 650% of the interest he earns and so on so that the withdrawal follows the Arithmetic pattern. At the end of the 20th year, Sultan's funds were finally completely exhausted. Determine value i. please help, asap, I will definitely upvote, thank u