Letang Industrial Systems Company (LISC) is trying to decide
between two different conveyor belt systems. System A costs
$325,000, has a four-year life, and requires $121,000 in pretax
annual operating costs. System B costs $405,000, has a six-year
life, and requires $115,000 in pretax annual operating costs. Both
systems are to be depreciated straight-line to zero over their
lives and will have zero salvage value. Whichever project is
chosen, it will not be replaced when it wears out. The tax...