Final answer:
The life of the Congo Express Airways bonds is calculated by dividing the total bond discount by the semiannual amortization amount, then converting the resulting number of periods into years, yielding 60 years. However, this is not reflected in the provided answer choices, suggesting a possible error in the question or answer choices.
Step-by-step explanation:
To determine the life of the Congo Express Airways bonds, we must calculate the total amount of discount being amortized and divide it by the amount amortized every six months. The issue price of $3,197,389 is less than the face value of the bonds which is $3,500,000, creating a bond discount of $3,500,000 - $3,197,389 = $302,611. The bond discount is being amortized at a rate of $10,087 every six months. To find out how many six-month periods it will take to amortize the full discount, we divide the total discount by the semiannual amortization amount, which is $302,611 / $10,087 ≈ 30 periods. Since interest is paid semiannually,
we multiply these 30 periods by 2 to convert to years, obtaining the life of the bond: 30 x 2 = 60 years. However, none of the given answer choices matches this duration. Thus, there might be an error in the question or in the provided answer choices.