Answer:
Step-by-step explanation:
This question is asking for unlevered beta given the levered beta;
Levered beta = Unlevered beta[ 1 + (1-tax)*D/E]
Levered beta = 0.8
tax = 36%
D/E = 0.40 / 0.60 = 0.6667
Next, plug in the numbers to the formula;
0.8 = Unlevered beta [ 1 + (1-0.36)*0.6667]
0.8 = Unlevered beta [1.426688]
Divide both sides by 1.426688 to solve for unlevered beta;
0.8/ 1.426688 = Unlevered beta
0.56 = Unlevered beta; this is the beta without debt, hence the equity beta.