Final answer:
The net cash flow at time 0 if the old equipment is replaced is $110 million. The incremental cash flows in years 1, 2, and 3 are $14 million each. The NPV of the replacement project is calculated as the present value of the incremental cash flows minus the initial investment, with an IRR of 9%.
Step-by-step explanation:
To calculate the net cash flow at time 0 when replacing the old equipment, we need to consider the initial investment and the salvage value of the old equipment:
Net Cash Flow at Time 0 = Initial Investment - Salvage Value of Old Equipment
Given that the initial investment for the new modem pool is $210 million and the salvage value of the old equipment is $100 million, the net cash flow at time 0 is:
Net Cash Flow at Time 0 = $210 million - $100 million = $110 million (rounded to 2 decimal places)
The incremental cash flows in years 1, 2, and 3 can be calculated by considering the increase in sales and decrease in operating costs:
(i) Incremental Cash Flow in Year 1 = Increase in Sales - Decrease in Operating Costs = $28 million - $14 million = $14 million (rounded to 2 decimal places)
(ii) Incremental Cash Flow in Year 2 = Increase in Sales - Decrease in Operating Costs = $28 million - $14 million = $14 million (rounded to 2 decimal places)
(iii) Incremental Cash Flow in Year 3 = Increase in Sales - Decrease in Operating Costs = $28 million - $14 million = $14 million (rounded to 2 decimal places)
The NPV of the replacement project can be calculated by discounting the incremental cash flows with the discount rate and subtracting the initial investment:
NPV = (Incremental Cash Flow in Year 1 / (1 + Discount Rate)1) + (Incremental Cash Flow in Year 2 / (1 + Discount Rate)2) + (Incremental Cash Flow in Year 3 / (1 + Discount Rate)3) - Initial Investment
Using the given discount rate of 9%, the NPV of the replacement project is:
NPV = ($14 million / (1 + 0.09)1) + ($14 million / (1 + 0.09)2) + ($14 million / (1 + 0.09)3) - $210 million
IRR can be found by solving for the discount rate that makes the NPV equal to zero. In this case, the IRR is the discount rate that satisfies the equation:
0 = ($14 million / (1 + IRR)1) + ($14 million / (1 + IRR)2) + ($14 million / (1 + IRR)3) - $210 million