Answer:
6.20000%
Step-by-step explanation:
The computation of the unlevered cost of capital is shown below;
Asset beta is
= (Debt × Debt beta + Equity × Equity beta) ÷ (Debt + Equity)
= (75 × 0.20 + 300 × 0.75) ÷ (75 + 300)
= 0.6400000
Now
Unlevered cost of capital is
= risk free rate + asset beta × market risk premium
= 3% + 0.6400000 × 5%
= 6.20000%