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1. You wish to buy a house. To do so, you borrow $150,000. The property taxes on

ID: 1171829 • Letter: 1

Question

1. You wish to buy a house. To do so, you borrow $150,000. The property taxes on

the home you are buying are currently $5400/year (divided into monthly payments of

$450). In addition to your home purchase, you would like to save for retirement. You

can budget $1800/month (total) to both your living and retirement expenses. You

wish to determine which loan is best: a 15 or 30 year fixed rate mortgage. The interest

rates are 3.45% and 4.05%, respectively (both are nominal and compounded monthly).

Compare the accumulated values in your retirement account at time

t

= 30 under the

following three assumptions (all nominal compounded monthly):

(a) The retirement account pays 4.5% interest.

(b) The retirement account pays 7.5% interest.

2. At what nominal rate will both loan options be indistinguishable?

Explanation / Answer

Answer A)

Answer B)

In the current situation the loan of option A , giving higher return for retirement fund at the end of 30 years .

so , the making both loan options be indistinguishable, eitherv the rate of optiuon A should increase or the rate of option b should decrease.

at rate of 3.71 % for option A ,and the current rate (4.05% ) for option B , the total accumulated retirement fund is same at the growth rate of 4.5% .

at rate of 3.905 % for option B ,and the current rate (3.45% ) for option A , the total accumulated retirement fund is same at the growth rate of 4.5% .

the same can be checked by putting the value in above spreadsheet of answer A.

Loan Principle Amount     150,000.00 Annual Interest Rate 3.45% Loan Period (in months)             180.00 Original Repayment Amount          1,068.64