Answer:
The money should be invested in bank = $137,639.05
Step-by-step explanation:
Given annually withdrawal money (annuity ) = $12000
Number of years (n ) = 20 years
Interest rate = 6 percent.
Since a person withdraw money annually for next 20 years with 6 percent interest rate. Now we have to calculate the amount that have been invested in the account today. So below is the calculation for invested money.
![\text{Present value of annuity} = (Annuity [1-(1 + r)^(-n)])/(rate) \\= (12000 [1-(1 + 0.06)^(-20)])/(0.06) \\=12000 * 11.46992122 \\=137,639.05](https://img.qammunity.org/2021/formulas/business/college/x0lgb1typ34u4m60qvdgdqwsc3v7cnavm2.png)