Answer:
3.22%
Explanation:
we must first determine the yield to maturity of both bonds in order to determine their before tax cost of debt:
YTM = {coupon + [(face value - market value)/n]} / [(face value + market value)/2]
YTM Bond₁ = {19.10 + [(1,000 - 1,030)/12]} / [(1,000 + 1,030)/2] = 16.6 / 1,015 = 0.01635 x 2 = 3.27%
YTM Bond₂ = {32.95 + [(1,000 - 1,070)/28]} / [(1,000 + 1,070)/2] = 0.0294 x 2 = 5.88%
firm's weighted after tax cost of debt = {[($5.2 / $14.7) x 3.27%] x (1 - 0.35)} + {[($9.5 / $14.7) x 5.88%] x (1 - 0.35)} = 0.75% + 2.47% = 3.22%