A building constructed in 1995 has an estimated total economic life of 60 years. If the effective age is determined to be 15 years, what is the remaining economic life?
Correct Answer
C) 45 years
Remaining economic life is calculated as total economic life minus effective age. In this case: 60 years - 15 years = 45 years of remaining economic life.
Why This Is the Correct Answer
Option C is correct because remaining economic life is calculated using the straightforward formula: Total Economic Life - Effective Age = Remaining Economic Life. Substituting the given values: 60 years - 15 years = 45 years. This calculation determines how many years of useful economic life the building has left based on its current effective condition. The remaining economic life is a critical component in depreciation calculations and helps appraisers determine the extent of physical deterioration.
Why the Other Options Are Wrong
Option A: 14 years
Option A (14 years) appears to subtract the chronological age (21 years in 2016) from the effective age (15 years), which is an incorrect approach that confuses the relationship between these different age concepts.
Option B: 31 years
Option B (31 years) might result from incorrectly subtracting the effective age from some other figure or making a calculation error, but it doesn't follow the proper formula for remaining economic life calculation.
Option D: 60 years
Option D (60 years) incorrectly suggests that the remaining economic life equals the total economic life, completely ignoring the effective age factor and indicating no depreciation has occurred.
TEL-EA=REL Formula
Remember 'TEL-EA=REL' where TEL (Total Economic Life) minus EA (Effective Age) equals REL (Remaining Economic Life). Think of it as 'TELL me the REAL remaining life.'
How to use: When you see any question about remaining economic life, immediately write down 'TEL - EA = REL' and plug in the numbers. This prevents confusion with other age-related calculations and ensures you use the correct formula.
Exam Tip
Always double-check that you're subtracting effective age (not chronological age) from total economic life, and verify your arithmetic since this is a straightforward calculation where small errors are easily caught.
Common Mistakes to Avoid
- -Confusing effective age with chronological age
- -Subtracting total economic life from effective age (reversing the formula)
- -Using the wrong age figure when multiple age references are given in the problem
Concept Deep Dive
Analysis
This question tests the fundamental concept of remaining economic life calculation, which is essential for depreciation analysis in real estate appraisal. The relationship between total economic life, effective age, and remaining economic life forms the foundation for determining physical deterioration using the age-life method. Understanding this concept is crucial because it directly impacts property valuation through depreciation calculations. The effective age represents the apparent age of a property based on its condition and maintenance, which may differ from chronological age, while total economic life represents the period over which a structure is expected to contribute to property value.
Background Knowledge
Appraisers must understand that total economic life is the estimated period during which a building contributes to property value, while effective age reflects the building's apparent age based on condition and maintenance rather than actual chronological age. The remaining economic life calculation is fundamental to the age-life method of estimating physical deterioration in the cost approach to value.
Real-World Application
An appraiser evaluating a well-maintained 1995 office building might determine it has an effective age of only 15 years (despite being 28+ years old chronologically) due to renovations and excellent maintenance, leaving 45 years of remaining economic life for depreciation calculations.
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