Our problem statement will involve deposits during working years to support withdrawals during retirement. It might be easy to work from retirement needs to deposts during working life. The accumulated investment at the date of retirement should be the PV of the withdrawals. The FV of the deposits should accumulate to the required investment. Time => Problem Statement: Sandra Jones intends to retire in 20 years at the age of 65. As yet, she has not provided for retirement income, and she wants to set up a periodic savings plan to do this. She has the opportunity to make equal annual payments into a savings account that pays 4 percent interest per year. Requirement: How large must her payments be to ensure that after retirement she will be able to draw $30,000 per year from this account until she is 80