Answer:
The answer is 6.72%
Explanation:
Calculating the imputed rate from a discount bond as follows:
( 1 + i )^n = FV / PV
( 1 + i )^3 = FV / PV, here FV= 1000 and PV= 727.25
so putting values in equation we have:
( 1 +i )^3 = 1000 / 727.25
( 1 + i )^3 = 1.375
solving for i
( 1 + i) = 1.375^1/3
( 1 + i ) = 1.112
i = 0.112 before tax rate
0.112 * (1 - tax rate) = after tax interest rate
0.112 * .60 = 0.0672 = 6.72%
thus the expected after tax cost of this debt issue is 6.72%