Answer:
The wheel mounted version should be purchased because it has lower equivalent annual cost
Explanation:
To determine which back hole is better, we will compare the the equivalent annual cost of the two and then select the lower of the two:
Equivalent annual cost = Present value of cost /Annuity factor
Present value of Wheel mounted
PV of salvage value = 3,000 × 1.1^(-5)= $1862.76
Total present value = 50,000 + $1862.76 =
Annuity factor = (1-1.1^(-5)/0.1) = 3.790786769
Equivalent annual cost =51862.76/ 3.7907 = $13,681.26
Present Value f Track mounted version =
PV of salvage value = 2,332.536901
Annuity factor =( 1-1.1^(-8)/0.1) = 5.334926
Total present value of cost = 80,000 + 2,332.536901 = 82332.5369
Equivalent annual cost =82,332.53 /5.33492=$15,432.741
Equivalent annual cost of wheel mounted =$ 13,681.26
Equivalent annual cost of track mounted=$15,432.741
The wheel mounted version should be purchased because it has lower equivalent annual cost