1.2. Example of Estimating Economic Life

Try these first

1. 1.

   Define economic life in the context of machinery.

   Hint

   Think about the time frame for machine efficiency.

2. 2.

   What is depreciation?

   Hint

   Consider how machinery loses value.

3. 3.

   What is economic life?

   • The total time a machine can operate
   • The period where costs are minimized
   • The time until mechanical failure

   Hint

   Think about when owning a machine is most efficient.

4. 4.

   True or False: Depreciation does not affect replacement costs.

   • True
   • False

   Hint

   Consider how machinery's value changes over time.

5. 5.

   Given a machine with a purchase price of ₹50,00,000, a salvage value of ₹5,00,000, inflation of 4% annually, and a depreciation rate of 20%, calculate when the optimal replacement year would be for minimal costs over a 5-year period.

   Hint

   Break down the calculations year by year for clarity.

6. 6.

   Create a comprehensive report analyzing three different machines with differing economic lives, costs, and salvage values to determine which should be replaced first, using cumulative cost analysis.

   Hint

   Include all associated costs and evaluate them relative to their age.