Answer:
after-tax cost of debt 5.2725%
Step-by-step explanation:
We will solve for the market rate of the bonds which is the one that makes the maturity and coupon payment equal to its current market price:
We sovle it using a financial calcualtor or excel goal seek tool
C 110.000 (1,000 x 11%)
time 10 years
rate 0.070304812
PV $771.5066
Maturity 1,000
time 10 years
rate 0.070304812
PV 506.90
PV c $771.5066
PV m $506.9034
Total $1,278.4100
Now that we find that market rate is 7.03%
we calcautle the after tax cost of debt:
7.03 x (1 - 25%) = 5.2725%