
(a)
Calculate the
(a)

Explanation of Solution
Installation cost is (IN) $4,970,000. Saving per year (A) is $1,300,000. Time period is 10.
Rate of return (i) can be calculated as follows:
Substitute the rate of return as 22% by trial and error method in the above Equation.
When the rate of return is substituted as 22%, the calculated value is greater than the 3.8231. Thus, the rate of return increases to 22.8%.
The calculated value is nearly equal to initial cost with rate of return 22.8%. Thus, it is confirmed that the rate of return is 22.8%.
The interest rate can be calculated through spreadsheet function that given below:
=RATE(10,1300000,-4970000)
The above functions gives the value of 22.8%.
(b)
Calculate the rate of return.
(b)

Explanation of Solution
Length of the G (G) is 113. Cost of G (PG) per unit is $72,000. Saving per year (A) is $1,100,000. Time period is 10.
Rate of return (i) can be calculated as follows:
Substitute the rate of return as 6% by trial and error method in the above Equation.
When the rate of return is substituted as 6%, the calculated value is less than the 7.3964. Thus, the rate of return decreases to 5.896%.
The calculated value is nearly equal to the value 7.3964t with rate of return 5.896%. Thus, it is confirmed that the rate of return is 5.896%.
The interest rate can be calculated through spreadsheet function that given below:
= RATE(10,1100000,-72000*113)
The above functions gives the value of 5.896%.
Want to see more full solutions like this?
Chapter 7 Solutions
Engineering Economy
- Use the Feynman technique throughout. Assume that you’re explaining the answer to someone who doesn’t know the topic at all. Write explanation in paragraphs and if you use currency use USD currency: 10. What is the mechanism or process that allows the expenditure multiplier to “work” in theKeynesian Cross Model? Explain and show both mathematically and graphically. What isthe underpinning assumption for the process to transpire?arrow_forwardUse the Feynman technique throughout. Assume that you’reexplaining the answer to someone who doesn’t know the topic at all. Write it all in paragraphs: 2. Give an overview of the equation of exchange (EoE) as used by Classical Theory. Now,carefully explain each variable in the EoE. What is meant by the “quantity theory of money”and how is it different from or the same as the equation of exchange?arrow_forwardZbsbwhjw8272:shbwhahwh Zbsbwhjw8272:shbwhahwh Zbsbwhjw8272:shbwhahwhZbsbwhjw8272:shbwhahwhZbsbwhjw8272:shbwhahwharrow_forward
- Use the Feynman technique throughout. Assume that you’re explaining the answer to someone who doesn’t know the topic at all:arrow_forwardUse the Feynman technique throughout. Assume that you’reexplaining the answer to someone who doesn’t know the topic at all: 4. Draw a Keynesian AD curve in P – Y space and list the shift factors that will shift theKeynesian AD curve upward and to the right. Draw a separate Classical AD curve in P – Yspace and list the shift factors that will shift the Classical AD curve upward and to the right.arrow_forwardUse the Feynman technique throughout. Assume that you’re explaining the answer to someone who doesn’t know the topic at all: 10. What is the mechanism or process that allows the expenditure multiplier to “work” in theKeynesian Cross Model? Explain and show both mathematically and graphically. What isthe underpinning assumption for the process to transpire?arrow_forward
- Use the Feynman technique throughout. Assume that you’re explaining the answer to someone who doesn’t know the topic at all: 15. How is the Keynesian expenditure multiplier implicit in the Keynesian version of the AD/ASmodel? Explain and show mathematically. (note: this is a tough one)arrow_forwardUse the Feynman technique throughout. Assume that you’re explaining the answer to someone who doesn’t know the topic at all: 13. What would happen to the net exports function in Europe and the US respectively if thedemand for dollars rises worldwide? Explain why.arrow_forward20. Given the mathematical model below, solve for the expenditure multiplier for a) government spending, G; and b) for consumer taxes, T. (medium difficulty) Y=C+I+G C=Co+b(Y-T) 1 = 10 T=To+tY G = Go+gYarrow_forward
- Use the Feynman technique throughout. Assume that you’re explaining the answer to someone who doesn’t know the topic at all: 11. What exactly is a rectangular hyperbola and what relevance is it to classical economics?arrow_forwardUse the Feynman technique throughout. Assume that you’re explaining the answer to someone who doesn’t know the topic at all: 9. Explain the difference between absolute and comparative advantage in a family setting, i.e.using parents and children. What can we glean from knowing about comparative andabsolute advantages?arrow_forwardUse the Feynman technique throughout. Assume that you’re explaining the answer to someone who doesn’t know the topic at all: 18. Explain why most economists believe it is absolutely necessary to allow free trade in aneconomy. Why is it harmful (under most circumstances) to have tariffs and trade barriers?arrow_forward
- Principles of Economics (12th Edition)EconomicsISBN:9780134078779Author:Karl E. Case, Ray C. Fair, Sharon E. OsterPublisher:PEARSONEngineering Economy (17th Edition)EconomicsISBN:9780134870069Author:William G. Sullivan, Elin M. Wicks, C. Patrick KoellingPublisher:PEARSON
- Principles of Economics (MindTap Course List)EconomicsISBN:9781305585126Author:N. Gregory MankiwPublisher:Cengage LearningManagerial Economics: A Problem Solving ApproachEconomicsISBN:9781337106665Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike ShorPublisher:Cengage LearningManagerial Economics & Business Strategy (Mcgraw-...EconomicsISBN:9781259290619Author:Michael Baye, Jeff PrincePublisher:McGraw-Hill Education





