Final Answer:
it take you to save enough to pay off a $200,000 loan at an interest rate r of 6% if you are setting aside $5000 per month is 12 years.
Thus the correct option is (C).
Step-by-step explanation:
To calculate the number of years required to save enough money to pay off a $200,000 loan at an interest rate of 6%, setting aside $5000 per month, we can use the future value of an annuity formula:
![\[ FV = P \cdot \left( ((1 + r)^(nt) - 1)/(r) \right) \]](https://img.qammunity.org/2024/formulas/mathematics/high-school/epi69ujjnrive35bkver1z7vyjx4i90uta.png)
Where:
FV is the future value (loan amount) which is $200,000,
P is the monthly saving, $5000,
r is the monthly interest rate, which is
,
n is the number of compounding periods per year, 12 for monthly savings,
t is the number of years.
Rearranging the formula to solve for \( t \):
![\[ t = (\log\left((FV \cdot r)/(P) + 1\right))/(n \cdot \log(1 + r)) \]](https://img.qammunity.org/2024/formulas/mathematics/high-school/hnusramsce9hqoqtv32syp9q1jiko43con.png)
Substituting the given values:
![\[ t = (\log\left((200,000 \cdot (0.06)/(12))/(5,000) + 1\right))/(12 \cdot \log(1 + (0.06)/(12))) \]](https://img.qammunity.org/2024/formulas/mathematics/high-school/beefz92c99zqtcgdnrdtotelt3j2yxvp3c.png)
After evaluating the expression, the result is approximately 12 years. Therefore, it will take 12 years to save enough money to pay off the $200,000 loan.
Thus the correct option is (C).