In: Economics
Dunn Manufacturing is considering the following two alternatives. The cost information for the two proposals for replacing an equipment are provided are in table below.
| 
 Machine X  | 
 Machine Y  | 
|
| 
 Initial cost  | 
 $120,000  | 
 $96,000  | 
| 
 Benefits/year  | 
 $20,000 for the first 10 years and $9,000 for the next 10 years  | 
 $12,000 per year for 20 years.  | 
| 
 Life  | 
 20 years  | 
| 
 Salvage value  | 
 $40,000  | 
 $20,000  | 
| 
 MARR  | 
 8%  | 
Reference: Case Study 5
The NPW of machine Y is ________________.
| A. | 
 $29,508  | 
|
| B. | 
 $32,103  | 
|
| C. | 
 $26,106  | 
|
| D. | 
 $42,196  | 
Answer is C. $ 26,106
The explanation is as follows:
Present value of benefits for 20 years ($12,000 *Annuity factor @8% i.e. 9.818): $ 117,816
Add: Present value off salvage value ($20,000*Present value factor for 20th year i.e. 0.2145): $4,290
Less: Initial Investment: $96,000
Net present worth of Machine Y: $26,106