Ying imports has several bond issues outstanding each

Question

Ying imports has several bond issues outstanding, each making semiannual interest payments.

The bonds are listed in the table below. If the corporate tax rate is 34 percent, what is the aftertax cost of the company's debt?

Bond    Coupon Rate          Price Quote      Maturity           Face Value

1           7.5%                  105.0                5 Years          20,000,000

2           5.8                     95.4                 8 Years          40,000,000

3           7.7                     103.8               15.5 years       45,000,000

4           8.1                     105.7                25 years        60,000,000