Answer:
a. 6.56%
b. 10.62%
Explanation:
Debt-equity ratio=debt/equity
Hence debt=1.2 equity
Let equity be $x
Debt=$1.2x
Total=$2.2x
WACC=Respective costs*Respective weight
a.
8.7=(x/2.2x*13)+(1.2x/2.2x*Cost of debt)
8.7=5.909+(1.2/2.2*Cost of debt)
Cost of debt=(8.7-5.909)*(2.2/1.2)
=5.1167%(Approx)
Hence pretax cost of debt=Cost of debt/(1-tax rate)
=5.1167/(1-0.22)=6.56%(Approx).
b.
8.7=(x/2.2x*Cost of equity)+(1.2x/2.2x*7.1)
8.7=(1/2.2*Cost of equity)+3.8727
Cost of equity=(8.7-3.8727)*2.2
=10.62%