The Mathematics of Money

(Darren Dugan) #1

Copyright © 2008, The McGraw-Hill Companies, Inc.



  1. The population of Allegany City is 27,540. An urban planning consultant predicts that the population will grow at
    a 1.95% effective rate for the next 10 years. What is she predicting the population will be in 10 years?

  2. Find the effective rate equivalent to 8.01% compounded monthly.

  3. Approximately how long would it take to double your money at a rate of 4.59% compounded quarterly?

  4. Burali-Forti Logic Processors Inc. had sales of $375,000,000 in the last year. The company predicts that its sales will
    grow at an 8% annual rate for the foreseeable future. According to this prediction, what will the company’s sales be in
    5 years?

  5. Gabriela invested $3,500 at 4^13 ⁄ 16 % compounded monthly for 4½ years. How much interest did she earn?

  6. Approximately what effective interest rate would you need to earn in order for a $2,500 investment to grow to $10,000
    in 12 years?


Chapter 3 Exercises 139
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