A large textile company is trying to decide among three alternatives of sludge dewatering processes. The costs associated with these alternatives are shown below. Alternative Y will need an upgrade of $9700 at the end of year 2. At the end of year 2, alternative Z would be replaced with another alternative Z having the same installed and operating costs. If the MARR is 14% per year, which alternative should be chosen?
Alternative |
X |
Y |
Z |
Installed costs |
$68,500 |
$48,500 |
$33,500 |
Annual operating costs |
$6000 |
$4000 |
$5000 |
Overhaul cost in year 2 |
- |
$9700 |
- |
Salvage value |
$33,250 |
$28,250 |
$15,750 |
Useful life, years |
8 |
4 |
2 |
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