An industrial engineer is considering two robots for improving efficiency in a fiber-optic manufacturing company. Robot X will have a first cost of

$85,000, an annual maintenance and operation (M&O) cost of $30,000, and a $35,000 salvage value after its useful life of two years. A more sophisticated model, Robot Y will cost $157,000, have an annual M&O cost of $28,000, and a

$60,000 salvage value after its four-year life. Select the better robot on the basis of a future worth comparison at an interest rate of 10% per year.

Solve by

(a) tabulated factors, and

(b) calculator.