Questions: Subsidized Student Loan (determine the monthly payment required for a 10-year loan) Unsubsidized Student Loan (determine the monthly payment required for a 10-year loan that accrues simple interest while in school for 4 years)
Initial principal amount to repay (P) 32,740.00
Your APR (i) 9.15%
Number of years while in school
Additional interest accrued while in school
11982.84
44722.84 New principal amount to repay (P)
Number of payments per year (n) 12
Number of years (t) 10
The monthly loan payment (PMT) based on the initial principal The monthly loan payment (PMT) based on the new principal amount
Total amount paid on the loan Total amount paid on the loan
Interest paid on loan Interest paid on the loan (including the interest accrued while in school)
Transcript text: Subsidized Student Loan (determine the monthly payment required for a 10-year loan) Unsubsidized Student Loan (determine the monthly payment required for a 10-year loan that accrues simple interest while in school for 4 years)
Initial principal amount to repay (P) $32,740.00
Your APR (i) 9.15%
Number of years while in school
Additional interest accrued while in school
11982.84
44722.84 New principal amount to repay (P)
Number of payments per year (n) 12
Number of years (t) 10
The monthly loan payment (PMT) based on the initial principal The monthly loan payment (PMT) based on the new principal amount
Total amount paid on the loan Total amount paid on the loan
Interest paid on loan Interest paid on the loan (including the interest accrued while in school)
Solution
Solution Steps
Solution Approach
To determine the monthly payment for a subsidized student loan, use the formula for an amortizing loan:
\[
PMT = \frac{P \times i}{1 - (1 + i)^{-n \times t}}
\]
where \( P \) is the principal, \( i \) is the monthly interest rate, \( n \) is the number of payments per year, and \( t \) is the number of years.
For the unsubsidized student loan, first calculate the new principal amount by adding the additional interest accrued while in school to the initial principal. Then, use the same formula to calculate the monthly payment based on this new principal amount.
Step 1: Calculate Monthly Payment for Subsidized Loan
To find the monthly payment \( PMT \) for the subsidized student loan, we use the formula:
\[
PMT = \frac{P \times i}{1 - (1 + i)^{-n \times t}}
\]
where:
\( P = 32740.00 \)
\( i = \frac{0.0915}{12} = 0.007625 \)
\( n = 12 \)
\( t = 10 \)
Substituting the values, we calculate:
\[
PMT = \frac{32740.00 \times 0.007625}{1 - (1 + 0.007625)^{-120}} \approx 417.40
\]
Step 2: Calculate New Principal for Unsubsidized Loan
The new principal amount \( P' \) for the unsubsidized loan is calculated by adding the additional interest accrued while in school to the initial principal:
\[
P' = 32740.00 + 11982.84 = 44722.84
\]
Step 3: Calculate Monthly Payment for Unsubsidized Loan
Using the same formula for the unsubsidized loan:
\[
PMT' = \frac{P' \times i}{1 - (1 + i)^{-n \times t}}
\]
Substituting the new principal:
\[
PMT' = \frac{44722.84 \times 0.007625}{1 - (1 + 0.007625)^{-120}} \approx 570.17
\]
Final Answer
The monthly payment for the subsidized loan is approximately \( 417.40 \) and for the unsubsidized loan is approximately \( 570.17 \).