I would like you to answer all the questions in the excel attachment using only the Excel functions. Please do r

I would like you to answer all the questions in the excel attachment using only the Excel functions. Please do remember to answer the questions only using excel functions.

An existing robot can be kept if $2,000 is spent now to upgrade it for future service requirements. Alternatively, the
have been developed for both the defender and challenger.
Current MV
$38.000 Purchase Price
Required Upgrade
$2.000 Installation Cost
Annual Expenses
$1.400 Annual Expenses
Remaining Useful Life
6 Years Useful Life
MV at the end of Useful Life
-$1.500 MV at the end of Useful Life
The company’s before-tax MARR is 20% per year. Based on this information, should the existing robot be replaced
requirements. Alternatively, the company can purchase a new robot to replace the old robot. The following estimates
10 Years
eful Life
d the existing robot be replaced right now? Assume the robot will be needed for an indefinite period of time.(9.7)
e following estimates
riod of time.(9.7)
In a replacement analysis for a vacuum seal on a spacecraft, the following data are known about the challenger: the
years, however, it will $2000 in each of years four and five, and then $4500 in the sixth year and increasing by $25
year. What is the economic life of this challenger?
known about the challenger: the initial investment is $12,000; there is no annual maintenance cost for the first three
xth year and increasing by $2500 each year thereafter. The salvage value is $0 at all times, and MARR is 10% per
ost for the first three
d MARR is 10% per
Use the PW method to select the better of the following alternatives
Annual Expenses
Defender: Alternative A
Insurance and Property Taxes
4% of initial capital investment
Leasing Cost
Assume that the defender was installed five years ago.The MARR is 10% per year
Alternative A
Cost of defender five years ago= $5,000,000
BV now= $111.550
Estimated MV eight years from now= $50,000
Present MV= $150,000
Challenger: Alternative B
A proposal has been made for improving the downtown area of a small town. The plan calls for banning vehicular tr
plantings and other beautification features. This plan will involve actual costs of $6,000,000 and, according to its pro
Increased sales tax revenue
450.000 per year
Increased real estate property taxes
325.000 per year
Benefits due to decreased air pollution
80.000 per year
Quality of life improvements to users
70.000 per year
Increased maintenance
175.000 per year
a. Compute the B-C ratio of this plan based on a MARR of 10% per year and an infinite life for the Project. (10.7)
b. How does the B-C ration change for a 20-year project life ? (10.7)
alls for banning vehicular traffic on the main street and turning this street into a pedestrian mall with tree
00 and, according to its proponents, the plan will produce benefits and disbenefits to the town as follows:
life for the Project. (10.7)
with tree
s follows:
A retrofitted space-heating system is being considered for a small office building. The system can be purchased an
of electric power each year over a six-year period.A kilo watt-hour of electricity costs $0.10, and the company uses
market value of the system will be $8,000 at the end of six years, and additional annual operating and maintenance
e system can be purchased and installed for $120,000, and it will save an estimated 300,000 kilowatt-hours(kWh)
$0.10, and the company uses a MARR of 15% per year in its economic evaluations of refurbished systems. The
ual operating and maintenance expenses are negligible. Use the benefit-cost method to make a recommendation.
hed systems. The
a recommendation.
There are two mutually exclusive proposal for a for a flood control project in Illinois. The first proposal involves an in
assumed to be permanent. The second proposal requires an initial outlay of $700000 followed by $200000 every 1
$95000 for the first 12 years and $150000 each year thereafter. Annual benefits are identical for both projects, and
proposal should be recommended?
The first proposal involves an initial outlay of $1350000 and annual expenses of $110000 this plan is
00 followed by $200000 every 12 years thereafter. Annual expenses for the second proposal are estimated to be
identical for both projects, and terminal salvage values are negligible. The interest rate is 6% per year. Which
an is
e estimated to be
er year. Which
Refer to Example 11-2. Assuming gasoline costs $4.00 per gallon, find the breakeven mileage per year between th
e per year between the hybrid vehicle and the gas-only vehicle. All other factors remain the same.
Suppose that, for a certain potential investment project, the optimistic, most likely, and pessimistic estimates are as
A. What is the AW for each of the three estimation conditions ?
B. It is thought that the most critical factors are useful life and net annual cash flow. Develop a table showing the ne
Most Likely
Capital Investment
90.000 $
100.000 $
Useful Life
12 Years
10 Years
6 Years
Market Value
30.000 $
20.000 $
Net Annual Cash Flow
35.000 $
30.000 $
MARR (per year)
pessimistic estimates are as shown in the accompanying table.
velop a table showing the net AW for all combinations of the estimates for these two factors,
An aerodynamic three-wheeled automobile (the Dart) runs on compressed natural gas stored in two cylinders in the
hour, and it can travel 100 miles per gallon of fuel. Another two-seater automobile costs $10,000 and averages 50m
MARR is 10% per year, over what range of annual miles driven is the Dart more economical ? Assume a useful life
stored in two cylinders in the rear of the vehicle. The $13,000 Dart can cruise at speeds up to 80 miles per
s $10,000 and averages 50miles per gallon of compressed natural gas. If fuel costs $8.00 per gallon and
omical ? Assume a useful life of five years for both cars. (11.2)
A large mudslide caused by heavy rains will cost Sabino County $1,000,000 per occurrence in lost property tax reve
A civil engineer has proposed constructing a culvert on a mountain where mudslides are likely. This culvert will redu
and annual maintenance expenses would be $2000 in the first year, increasing by 5% per year thereafter. If the life
7% per year, should the culvert be built ?
currence in lost property tax revenues.In any given year, there is one chance in 100 that a major mudslide will occur.
s are likely. This culvert will reduce the likehood of a mudslide to near zero. The investment cost would be $50,000,
5% per year thereafter. If the life of the culvert is expected to be 20 years and the cost of capital to Sabino County is
mudslide will occur.
would be $50,000,
to Sabino County is
A new snow making machine utilizes technology that permits snow to be produced in ambient temperature of 70 de
contemplating this investement are uncertain as shown below (note pr= probability).
Capital Investment
$ 120,000 (Certain, pr. = 1.0)
Annual Revenues
$ 140,000 with pr.0.6, or $50,000 with pr.0.4
Annual Expenses
$ 60,000 with pr.0.6, or $50,000 with pr.0.4
Salvage Value
$ 40,000 with pr.0.5, or $35,000 with pr.0.5
The machine is expected to have a useful life of 12 years, and the MARR of the ski resort is 8% per year.What is th
n ambient temperature of 70 degrees Fahrenheit or below. The estimated cash flows for ski resort
resort is 8% per year.What is the expected present worth of this investment ?
The owner of a ski resort is considering installing a new ski lift that will cost $900,000. Expenses for operating and m
The U.S.Weather Service estimates that there is a 60% probability of 80 days of skiing weather per year, a 30% pro
operators of the resort estimate that during the first 80 days of adequate snow in a season, an average of 500 peop
the lift will be used by only 400 people per day during the extra period; and if 20 more days of skiing are available, o
The owners wish to recover any invested capital within five years and want at least a 25% per year rate of return be
0. Expenses for operating and maintaining the lift are estimated to be $1,500 per day when operating.
ng weather per year, a 30% probability of 100 days per year, and a 10% probability of 120 days per year. The
eason, an average of 500 people will use the lift each day, at a fee of $10 each. If 20 additional days are available,
e days of skiing are available, only 300 people per day will use the lift during those days.
25% per year rate of return before taxes. Based on a before-tax analysis, should the lift be installed?
per year. The
days are available,
Two Alternative Breakeven Analysis: Hybrid Vehicles
Gas-electric (so-called hybrid) vehicles save on gasoline consumption by shut-
ting off the vehicle’s engine while idling, giving the vehicle a boost of electric
addition to environmental benefits, the primary monetary benefit to the owner
power during acceleration, and capturing electrical energy while braking. In
is reduced fuel cost as a result of improved gas mileage. The trade-off
, however
is that the purchase price of the hybrid vehicle is higher than that of a standard
gasoline-only fueled vehicle.
Consider a hybrid vehicle with a sticker price of $31,500. This vehicle will
average 30 miles per gallon of gasoline. A tax credit* of $1,500 for the hybrid
vehicle effectively reduces its sticker price to $30,000. A comparably equipped
gasoline-only vehicle will cost $28,000 and will average 25 miles per gallon of
gasoline. Assuming an interest rate of 3% per year and a study period of five
years, find the breakeven cost of gasoline ($/gal) if the vehicle will be driven
18,000 miles each year.
Hybrid: EUACH(3%) = ($31,500 – $1,50041915)
To find the cost of gasoline that makes you indifferent between the two vehicles,
you need to develop an equivalent-worth equation in terms of the factor of
interest—the cost of gasoline. In this simple example, we are only considering
the sticker price (investment cost) and fuel cost (annual expenses). By default,
we are assuming that the maintenance of the two vehicles will be the same as
will the future resale value.
In this example, we develop equivalent uniform annual cost (EUAC)
expressions for each of the vehicles. Letting X = cost of gasoline, we get the
following EUAC equations.
3 000
18,000 mi/year
30 mi/gal
Gas-only: EUACG(3%) = $28,000(A/P, 3%, 5) + ($X/gal)
(18,000 mi/year
25 mi/gal
Setting EUACH(3%) = EUACG(3%) and solving for X, we find the breakeven
cost of gasoline to be
X = $3.64/gal.
Figure 11-2 shows the breakeven chart for these vehicles as a function of the cost
of gasoline. If our best estimate of the average cost of gasoline over the next five
years is less than $3.64 per gallon, then purchasing a traditional gasoline-only
vehicle is more economical
. The hybrid would be the vehicle of choice if the cost
of gasoline is projected to be higher than $3.64 per gallon.
* The Energy Policy Act of 2005 provides for certain tax credits for purchasers of hybrid and other alternatively
fueled vehicles. Very specific requirements must be met. The $1,500 used in the example is for demonstration
purposes only.

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