Math Problem Statement
The Flemings secured a bank loan of $304,000 to help finance the purchase of a house. The bank charges interest at a rate of 2%/year on the unpaid balance, and interest computations are made at the end of each month. The Flemings have agreed to repay the loan in equal monthly installments over 25 years. What should be the size of each repayment if the loan is to be amortized at the end of the term? (Round your answer to the nearest cent.)
Solution
The monthly payment for a fully amortized loan can be calculated using the loan amortization formula:
where:
- is the monthly payment,
- is the principal loan amount,
- is the monthly interest rate,
- is the total number of payments.
Now, let's calculate . Given data P = 304000 # Principal loan amount annual_interest_rate = 0.02 # 2% annual interest rate monthly_interest_rate = annual_interest_rate / 12 # Monthly interest rate n = 25 * 12 # Total number of payments (25 years * 12 months)
Loan amortization formula
M = P * (monthly_interest_rate * (1 + monthly_interest_rate) ** n) / ((1 + monthly_interest_rate) ** n - 1) MThe monthly repayment amount should be $1,288.52 to fully amortize the loan at the end of 25 years.
Would you like a breakdown of the calculation?
Here are some related questions:
- What happens if the interest rate increases to 3%?
- How much total interest will the Flemings pay over 25 years?
- How much of the first payment goes toward interest versus principal?
- What would the monthly payment be if the loan term was only 20 years?
- How does the loan balance decrease over time?
Tip: Making extra payments towards the principal can significantly reduce the total interest paid over the life of the loan!
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Math Problem Analysis
Mathematical Concepts
Loan Amortization
Interest Calculations
Algebra
Exponential Functions
Formulas
M = P * (r(1 + r)^n) / ((1 + r)^n - 1)
Theorems
Loan Amortization Theorem
Suitable Grade Level
Grades 11-12
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