A 5 year-old tooling kit that was purchased new for $9000 has a current market value of $4000 and expected 0&M costs of $3000, increasing by $1200 per year. Future market values are expected to decline by 25% annually (going forward). The kit can be used for another 3 years at most. The optimal replacement kit costs $8000 and has O&M costs starting at $2500 per year, increasing by $2000 per year. Salvage value for the new kit at the end of the first year is $4000 and falls by $1000 per year thereafter (until zero). The new model kit will be needed indefinitely. Assume a unique minimum AECN(15%) for both kits (both the current and replacement kit). The MARR is 15%. 1) What is the AECC ? a) Less than 6925.70 b) 6925.70-6945.70 c) 6945.70-6965.70 d) 6965.70-6985.70 e) More than 6985.70

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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A 5 year-old tooling kit that was purchased new for $9000 has a current market
value of $4000 and expected 0&M costs of $3000, increasing by $1200 per year.
Future market values are expected to decline by 25% annually (going forward). The
kit can be used for another 3 years at most. The optimal replacement kit costs $8000
and has 0&M costs starting at $2500 per year, increasing by $2000 per year.
Salvage value for the new kit at the end of the first year is $4000 and falls by $1000
per year thereafter (until zero). The new model kit will be needed indefinitely.
Assume a unique minimum AECN(15%) for both kits (both the current and
replacement kit).
The MARR is 15%.
1) What is the AECC+ ?
a) Less than 6925.70
b) 6925.70-6945.70
c) 6945.70-6965.70
d) 6965.70-6985.70
e) More than 6985.70
N=1
A,= 8K (1-15)+ >so -Yu = 770o
34
N=2
)(A\P,151,2)=6955.43
Az A, = 8K t
N=3
.4300
4503
)(AIP, 15%,3)
+ 4500
= 7 24250
Transcribed Image Text:A 5 year-old tooling kit that was purchased new for $9000 has a current market value of $4000 and expected 0&M costs of $3000, increasing by $1200 per year. Future market values are expected to decline by 25% annually (going forward). The kit can be used for another 3 years at most. The optimal replacement kit costs $8000 and has 0&M costs starting at $2500 per year, increasing by $2000 per year. Salvage value for the new kit at the end of the first year is $4000 and falls by $1000 per year thereafter (until zero). The new model kit will be needed indefinitely. Assume a unique minimum AECN(15%) for both kits (both the current and replacement kit). The MARR is 15%. 1) What is the AECC+ ? a) Less than 6925.70 b) 6925.70-6945.70 c) 6945.70-6965.70 d) 6965.70-6985.70 e) More than 6985.70 N=1 A,= 8K (1-15)+ >so -Yu = 770o 34 N=2 )(A\P,151,2)=6955.43 Az A, = 8K t N=3 .4300 4503 )(AIP, 15%,3) + 4500 = 7 24250
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