Answer:
C. Eight-year bond with 5.5% annual interest rate
Step-by-step explanation:
Consider each the interest for each scenario as follows;
A. Three-year bond with 9.5% annual interest rate
To calculate the interest amount, we use the formula below;
I=PRT
where;
I=interest amount
P=principal investment
R=annual interest rate
T=number of years
In our case;
I=unknown
P=$12 million
R=9.5%=9.5/100=0.095
T=3 years
replacing;
I=12×0.095×3=$3.42 million
The interest amount=$3.42 million
B. Four-year bond with 7.25% annual interest rate
To calculate the interest amount, we use the formula below;
I=PRT
Where;
I=unknown
P=$12 million
R=7.25%=7.25/100=0.0725
T=4 years
replacing;
I=12×0.0725×4=$3.48 million
The interest amount=$3.48 million
C. Eight-year bond with 5.5% annual interest rate
To calculate the interest amount, we use the formula below;
I=PRT
Where;
I=unknown
P=$12 million
R=5.5%=5.5/100=0.055
T=8 years
replacing;
I=12×0.055×8=$5.28 million
The interest amount=$5.28 million
D. Six-year bond with 6% annual interest rate
To calculate the interest amount, we use the formula below;
I=PRT
Where;
I=unknown
P=$12 million
R=6%=6/100=0.06
T=6 years
replacing;
I=12×0.06×6=$4.32 million
The interest amount=$4.32 million
Option C. has an interest amount of $5.28 million, there for it will cost them the most in total interest over the life of the bond