In: Operations Management
A young engineer wishes to buy a house but only can afford monthly payments of $500. Thirty-year loans are available at 12% interest compounded monthly. If she can make a $5,000 down payment, what is the price of the most expensive house that she can afford to purchase? Solve using annuities
Answer: $53,609
Explanation:
Given Annuity payment, P = $500,
Number of periods, n = 30 x 12 = 360,
12% interest is compounded monthly, hence rate per period, r= 12%/12 = 1% = 0.01
We need to find the present value of annuity payment, PV
PV = P [1- (1+r)-n/r]
= 500[1-(1+0.01)-360]/0.01
= $48609.16554
We can round off the value to $48,609
The engineer can make a down payment of $5,000.
Hence the price of the most expensive house that she can afford to purchase= $48,609 + $5,000
= $53,609