1. Tristan Sandino is selling his motorcycle. His friend, Rudy, is offering to pay cash in the amount of $8,800. Another friend,
Costa, has offered payments of $200 monthly for 4 years. What is the present value of Costa's payments? Assume money is worth 3.4%, compounded monthly. a.) $8,963.96
b.) $9,163.96
c.) $9,600.00
2. You are thinking about investing $25,000 in a business with expected returns as follows: costs of $1,250 per quarter for one year, gains of $2,000 per quarter for the next 2 years, and gains of $3,000 per quarter for the next 3 years. What would be your rate of return after 6 years?
a.) 15.55%
b.) 3.89%
c.) 26.36%
1. The amortization formula can tell you the present value if the string of payments is made at the end of the month. A = P(i/n)/(1 -(1 +i/n)^(-nt)) where A is the payment (200), P is the present value, n is the number of compoundings per year (12), and t is the number of years (4). 200 = P(.034/12)/(1 -(1 +.034/12)^-48) 200 = P*0.0223115558 P = 200/0.0223115558 ≈ 8,963.96
This matches the selection ... a) $8963.96
[Please note that an actual sale would probably require the first payment be made immediately, hence the present value would actually be $8,989.36.]
2. A financial calculator (HP-12c) computes the IRR at 3.889% (per quarter). Hence the annual rate of return is about 4*3.889% ≈ 15.55%
