Math Problem Statement
An investor wants to know the amount she should pay for an oil well expected to yield an annual return of $20,000 for the next 20 years, after which the well will be dry. Find the amount she should pay to yield a 12% annual return if a sinking fund earns 10% annually.
Solution
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Math Problem Analysis
Mathematical Concepts
Present Value of Annuities
Sinking Fund
Discount Rate
Formulas
Present Value of Annuity: PV = P × [(1 - (1 + r)^(-n)) / r]
Sinking Fund Formula: A = S × [(1 + i)^n - 1) / i]
Theorems
Present Value Theorem
Sinking Fund Accumulation
Suitable Grade Level
College Level / Advanced High School
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