You plan to purchase a house for $ 400,000 and you will make a 20% down payment. You are evaluating two mortgages a 30-year fixed mortgage at 3.34 %, and a 15-year fixed mortgage at 2.45%. Your goal is to have a monthly payment that fits within your budget. Which mortgage will give you the lowest monthly payment? What will that payment be? How much less will this be than the other monthly mortgage payment? Assuming you take the full term of the mortgage, which mortgage will result in you paying the most interest? What will that interest be?

Essentials Of Investments
11th Edition
ISBN:9781260013924
Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Chapter1: Investments: Background And Issues
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You plan to purchase a house for $ 400,000 and you will make a 20% down payment. You are evaluating two mortgages a 30-year fixed mortgage at 3.34 %, and a 15-year fixed mortgage at 2.45%. Your goal is to have a monthly payment that fits within your budget.

    1. Which mortgage will give you the lowest monthly payment? What will that payment be? How much less will this be than the other monthly mortgage payment?

    2. Assuming you take the full term of the mortgage, which mortgage will result in you paying the most interest? What will that interest be?

 

Expert Solution
Step 1 (1.)
Price of house $400,000
Down payment [$400,000*20%] $80,000
Loan amount or PV of loan $320,000

 

  Plan I Plan II
Duration (n) 30*12=360 periods 15*12=180 periods
Rate of interest (i) 3.34%12=0.002783 2.45%12=0.002042
Monthly payment (A)= $1408.45 $2,126.39
Calculation- PV=Ai×1-1(1+i)n$320,000=A.002783×1-1(1.002783)360$320,000×.002783=A×1-12.7196$890.56=A×0.6323A=$890.560.6323=$1,408.45 PV=Ai×1-1(1+i)n$320,000=A.002042×1-1(1.002042)180$320,000×.002042=A×1-11.4437$653.44=A×0.3073A=$653.440.3073=$2,126.39

The first mortgage (Plan I) will give us lowest monthly payment which is $1,408.45.

It is $717.94 less than the other mortgage payment.

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