Final Answer:
The correct calculation of Project Sigma's Internal Rate of Return (IRR) is b. 38.95%.
Step-by-step explanation:
The Internal Rate of Return (IRR) is the discount rate that makes the net present value (NPV) of a project equal to zero. In this case, Project Sigma involves an initial investment of $750,000 and is expected to generate net cash flows over four years. The Weighted Average Cost of Capital (WACC) is given as 10%. To calculate the IRR, we need to find the discount rate that equates the present value of cash inflows with the initial investment.
Using the formula for NPV:
![\[NPV = \sum_(t=1)^(4) (CF_t)/((1 + IRR)^t) - Initial Investment\]](https://img.qammunity.org/2024/formulas/business/high-school/480ih6zxpgfuf7uv6k7af1by4mjzll021k.png)
Setting NPV to zero and substituting the values:
![\[0 = (CF_1)/((1 + IRR)^1) + (CF_2)/((1 + IRR)^2) + (CF_3)/((1 + IRR)^3) + (CF_4)/((1 + IRR)^4) - $750,000\]](https://img.qammunity.org/2024/formulas/business/high-school/r28uahzquohiqvu2ftbt8b430s8uhu5tem.png)
Given that WACC is 10%, we can use an iterative approach or financial calculators/software to find the IRR. The correct result is approximately 38.95%, which corresponds to option b.
In conclusion, the IRR of 38.95% (b) indicates that Project Sigma is expected to generate returns that exceed the cost of capital (WACC). Therefore, undertaking Project Sigma would likely be financially viable for Blue Llama Mining Company.