A). Help Prof Kim with the following questions he has. Assume $1,000 has been deposited into Prof. Kims IRA (Individual Retirement Account) at the end of each month for the past 25 years at 10% APR. How much does he have in his IRA account now? Imagine Prof. Kim is now 65 and wants to make equal monthly withdrawals from his IRA at the beginning of each month (beginning today), for the next 25 years. How large can this monthly withdrawal be?

B). Continuing from Question A, if Prof. Kim wants to make 20% higher monthly withdrawals from his IRA account after his retirement but keeping all other information the same, how earlier should have he started his savings?

(Step-by-step answer should be provided.)