a three-year-old small crane is being considered for early replacement. Its current market
value is $17,500. Estimated future market values and annual operating costs for the next five years are
given in the table below. What is the economic life for this crane if the interest rate is 5.1% per year​

a threeyearold small crane is being considered for early replacement Its current marketvalue is 17500 Estimated future market values and annual operating costs class=