Ayman has Been working with an ABC he retired today after 30years and the company was Saving $ 300 monthly for the first 10 years and500 monthly for the next 20 years the interest rate was 6% compounding monthly for the first 5 years and 4% after that . Ayman today is 65 years old . It is planing to start withdrawal next month. 1- if ayman withdrawal 1000 monthly how much will be left when he is 80 years old 2. Suppose Ayman needs $ 2,500 a month, how many he withdraw can he make.