Engineering Economy, Student Value Edition (17th Edition)
17th Edition
ISBN: 9780134838137
Author: William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 3P
A typical discounted price of a AAA battery is $0.75. It is designed to provide 1.5 volts and 1.0 amps for about an hour. Now we multiply volts and amps to obtain power of 1.5 watts from the battery. Thus, it costs $0.75 for 1.5 Watt-hours of energy. How much would it cost to deliver one kilowatt-hour? (Think of a kilowatt-hour of electricity as the power needed to run your dishwasher one time.) How does this compare with the cost of energy from your local electric utility at $0.10 per kilowatt-hour? (1.2 1.3)
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1. Riaz has a limited income and consumes only Apple and Bread. His current consumption choice is 3
apples and 5 bread. The price of apple is $3 each, and the price of bread is $2.5 each. The last apple added
5 units to Sadid's utility, while the last bread added 7 units.
Is Riaz making the utility-maximizing choice? Why or why not? Do you suggest any adjustment in Riaz's
consumption bundle? Why or why not? Give reasons in support of your answer.
State the condition for a consumer's utility maximizing choice and illustrate graphically.
2. Consider the following table of long-run total costs for three different firms:
Quantity
Total Cost ($)
Firm A
Firm B
Firm C
1
60
11
21
2
70
24
34
3
80
39
49
4
90
56
66
5
100
75
85
6
110
96
106
7
120
119
129
Does each of these firms experience economies of scale or diseconomies of scale? Explain your answer
with necessary calculations.
Riaz has a limited income and consumes only Apple and Bread. His current consumption choice is 3 apples and 5 bread. The price of apple is $3 each, and the price of bread is $2.5 each. The last apple added 5 units to Sadid's utility, while the last bread added 7 units. Is Riaz making the utility-maximizing choice? Why or why not? Do you suggest any adjustment in Riaz's consumption bundle? Why or why not? Give reasons in support of your answer.State the condition for a consumer's utility maximizing choice and illustrate graphically.
1. Riaz has a limited income and consumes only Apple and Bread. His current consumption choice is 3
apples and 5 bread. The price of apple is $3 each, and the price of bread is $2.5 each. The last apple added
5 units to Sadid's utility, while the last bread added 7 units.
Is Riaz making the utility-maximizing choice? Why or why not? Do you suggest any adjustment in Riaz's
consumption bundle? Why or why not? Give reasons in support of your answer.
State the condition for a consumer's utility maximizing choice and illustrate graphically.
Chapter 1 Solutions
Engineering Economy, Student Value Edition (17th Edition)
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