please show your work on the math problems to get full credit.

Umar
copy_of_3000000.xlsx

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Sami Almalki
TECH-ineering 452 Economics Eng
Vov 26, 2012
Problem 8.5
Two different routes are under consideration for a new interstate highway:
Length of Annual
Highway First Cost Upkeep Cost
The " Long" route 22 miles $21 million $140,000
Transmountain shortcut 10 miles $45 million $165,000
For either route, the volume of traffic will be 400,000 cars per year. These cars
are assumed to operate at $0.25 per mile. Assuming a 40-year life for each road
and an interest rate of 10%, determine which route should be selected.
User's annual cost= 22miles*$0,25 per mile*400,000 cars=$2,200,000
Sponsor's annual cost=$21,000,000(A/P,10%,40)+$140,000=$2,277,488
Short cut:
User's annual cost= 10miles*$0,25*400,000 cars= $1,000,000
Sponsor's annual cost=$45,000,000(A/P,10%,40)+$165,000=$4,766,674
Problem 9.1
Identify which of the following expenditures is considered as a capital expenditure that
must be capitalized (depreciated):
(a) Purchase land to build a warehouse at $300,000.
(b)Purchased a copy machine at $15,000.
( c) Installed a conveyor syatem at a cost of $55,000 to automate some part of production processes.
(d)Painted the office building, both interior and exerior, at a cost of $22,000.
(e)Repaved the parking lot at a cost of $25,000.
(f) Installed a purified water fountain in the employee lounge at a cost of $3,000.
(g) Purchased a spare part for a stamping machine at a cost of $3,800.
(h) Paid $12,000 to lease a dump truck for six months.
(i) Purchased a patent on an energy-saving device over five years at a cost of $30,000.
a,b,e,f, and h (amortization,rather than depreciation)
Problem 9.9
Consider the following data on an asset:
Cost of the asset, I $130,000
Useful life, N 5 years
Salvage value, S $20,000
Compute the depreciation allowance and the resulting book values using the following method:
Dn=Book value at beginning of year n - Salvage value,over, Remaining useful life at beginning of year n
SL DDB
n Dn Bn Dn Bn
0 $130,000 $130,000
1 $22,000 $108,000 $52,000 $78,000
2 $22,000 $86,000 $31,200 $46,800
3 $22,000 $64,000 $18,720 $28,080
4 $22,000 $42,000 $693 $20,000
5 $22,000 $20,000 $0 $20,000
(a) Depreciation rate=1/5 for SL
(b) Deprciation rate= 2/5 for DDB

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