Math Problem Statement
You wish to retire in 15 years, at which time you want to have accumulated enough money to receive an annual annuity of $18,000 for 20 years after retirement. During the period before retirement you can earn 9 percent annually, while after retirement you can earn 11 percent on your money. What annual contributions to the retirement fund will allow you to receive the $18,000 annuity?
Solution
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Math Problem Analysis
Mathematical Concepts
Annuities
Present Value
Future Value
Interest Rates
Financial Planning
Formulas
Present Value of an Annuity: PV = P * (1 - 1/(1 + r)^n) / r
Future Value of an Annuity: FVA = C * ((1 + r)^n - 1) / r
Theorems
Present Value of Annuities
Future Value of Annuities
Suitable Grade Level
Undergraduate (Finance or Business Courses)
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