Foundationsof Ingeneering

Chapter 1

Foundations of Engineering Economy

Solutions to Problems

1.1 Time value of money means that there is a certain worth in having money and the
worth changes as a functionof time.

1.2 Morale, goodwill, friendship, convenience, aesthetics, etc.

1.3 (a) Evaluation criterion is the measure of value that is used to identify “best”.
(b) The primaryevaluation criterion used in economic analysis is cost.

1.4 Nearest, tastiest, quickest, classiest, most scenic, etc

1.5 If the alternative that is actually the best one is not even recognized as analternative, it obviously will not be able to be selected using any economic analysis tools.

1.6 In simple interest, the interest rate applies only to the principal, while compoundinterest generates interest on the principal and all accumulated interest.

1.7 Minimum attractive rate of return is the lowest rate of return (interest rate) that
a company or individual considers tobe high enough to induce them to invest their money.

1.8 Equity financing involves the use of the corporation’s or individual’s own funds for making investments, while debt financing involves theuse of borrowed funds. An example of equity financing is the use of a corporation’s cash or an individual’s savings for making an investment. An example of debt financing is a loan (secured orunsecured) or a mortgage.

1.9 Rate of return = (45/966)(100)
= 4.65%

1.10 Rate of increase = [(29 – 22)/22](100)
= 31.8%1.11 Interest rate = (275,000/2,000,000)(100)
= 13.75%

1.12 Rate of return = (2.3/6)(100)
= 38.3%
1.13 Profit = 8(0.28)= $2,240,000

1.14 P + P(0.10) = 1,600,000
1.1P = 1,600,000
P = $1,454,545

1.15 Earnings = 50,000,000(0.35)...