Gravely Gears (GG) makes gears using an automated machine costs $12,000 and has a 25% probability of breaking irreparably at the end of each year (assuming it was working in the previous year). The machine has a maximum five-year life and will be disposed of with zero value at the end of five years. The machine produces $4,000 of cash flow at the end of each year and the discount rate is 8% per year. What is the expected number of years the machine will last and what would the value of the machine be? What is the NPV of the machine?
Answer:
Most likely number &years of machine life = (1 + 1st, year breaking down probability)*(1 + 2nd year breaking down probability) * (1 + 3rd year breaking down Probability) * (1 + 4th year breaking down probability) * (1 + 5th year breaking down probability)
= (1 + 0.25)*(1 + 0.25)*(1 + 0.25)*(1. 0.25) * (1 + 0.25)
= 3.05 year
Value of the Machine = Present Value of all future Cash Inflows.
Cashflow Per Year | 4000 |
Term of Cashflows (Years) | 5 |
Discount Rate | 8% |
Present Value AnnuallY Factor @ 8% for 5 Years | 3.99 |
Present Value of cashflows (4000* 3.99) | 15970.84 |
Value of Machine in absolute terms without probability = 15970.80
Value of Machinery-taking expected life probability
Cashflow Per Year | 4000 |
Term of Cashflows (Years) | 3.05 |
Discount Rate | 8% |
Present Value AnnuallY Factor @ 8% for 3.05 Years | 2.62 |
Present Value of cashflows (4000* 3.99) | 10466.18 |
Present Value of Machinery for expected Ile =10466.18
NPV of the Machine = Present value of cash inflows – Initial investment
NPV if full life of the machine is considered = 15970.84 – 12000 = 3970.84
NPV if expected life of the machine is considered = 10466.18 – 12000 = -1533.82
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