Math Problem Statement

QUESTION 9 of 10: According to online realtor Zillow, a 30-year, $200,000, 4.5%, fixed rate mortgage on your house will currently set your estimated monthly payments at about $1,020 per month. A 15-year fixed rate $200,000 mortgage would drop to 4.0% with monthly payments of $1,480. Approximately how much would the 15-year fixed rate mortgage save you over the length of both loans?

Solution

The problem asks for the savings between two types of mortgages: a 30-year mortgage and a 15-year mortgage. Let's break this down:

Given Information:

  • 30-year mortgage:

    • Loan amount: $200,000
    • Interest rate: 4.5%
    • Monthly payment: $1,020
    • Loan term: 30 years
  • 15-year mortgage:

    • Loan amount: $200,000
    • Interest rate: 4.0%
    • Monthly payment: $1,480
    • Loan term: 15 years

Step 1: Total Payment for the 30-Year Mortgage

The total payments over the life of the 30-year mortgage is: Total payments for 30-year mortgage=1,020×12×30=367,200\text{Total payments for 30-year mortgage} = 1,020 \times 12 \times 30 = 367,200

Step 2: Total Payment for the 15-Year Mortgage

The total payments over the life of the 15-year mortgage is: Total payments for 15-year mortgage=1,480×12×15=266,400\text{Total payments for 15-year mortgage} = 1,480 \times 12 \times 15 = 266,400

Step 3: Calculate the Savings

The savings by opting for the 15-year mortgage instead of the 30-year mortgage is: Savings=367,200266,400=100,800\text{Savings} = 367,200 - 266,400 = 100,800

So, the 15-year fixed-rate mortgage would save you $100,800 over the length of both loans.

Correct Answer:

The correct choice is d) $100,800.

Would you like more details or explanations on how this was calculated?

Follow-Up Questions:

  1. What is the difference in interest rates between a 30-year and 15-year mortgage in general?
  2. How does a shorter loan term affect the total interest paid?
  3. Why are the monthly payments higher for a 15-year mortgage even though the interest rate is lower?
  4. How does the total loan amount affect your decision between different mortgage terms?
  5. Can extra payments on a 30-year mortgage help you save money similar to a 15-year mortgage?

Tip:

Paying off your mortgage earlier reduces the total interest paid over time, leading to significant long-term savings.

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Math Problem Analysis

Mathematical Concepts

Loan Amortization
Interest Rate Calculation
Savings Calculation

Formulas

Total payments for 30-year mortgage = monthly payment × 12 × loan term
Total payments for 15-year mortgage = monthly payment × 12 × loan term
Savings = total payments for 30-year mortgage - total payments for 15-year mortgage

Theorems

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Suitable Grade Level

Grades 9-12