In 10 years you are planning to buy a beach condo. The condo you want currently costs $100,000 and is expected to increase in value each year at a rate of 2.5 percent. If you can earn 10% annually on your investments, how much must you invest at the end of each of the next 10 years to be able to buy the condo?

Respuesta :

Answer:

8,031.94

Explanation:

this problem can be solved first calculating the future value of the condo, so we can use the next formula:

[tex]FV=PV*(1+i)^{n}[/tex]

where FV is future value, PV is the present value, i is the periodic interest rate and n is the number of periods. So applying to this particular problem we have:

[tex]FV=100,000*(1+0.025)^{10}[/tex]

[tex]FV=128,008[/tex]

now we must apply the concept of annuity, keep in mind that an annuity is a formula which allows you to calculate the future value of future payments affected by an interest rate.by definition the future value of an annuity is given by:

[tex]s_{n} =P*\frac{(1+i)^{n}-1 }{i}[/tex]

where [tex]s_{n}[/tex] is the future value of the annuity, [tex]i[/tex] is the interest rate for every period payment, n is the number of payments, and P is the regular amount paid. so:

[tex]128,008 =P*\frac{(1+0.1)^{10}-1 }{0.1}[/tex]

Solving P we have:

P=8,031.94