Answer: EUAC of new pipeline of $7,303.75 is less than the $10,000 of old pipeline so new pipeline should be built.
Step-by-step explanation:
Equivalent Uniform Annual cost can be calculated as:
= Reduction in annual cost + (Initial Cost/ Present value interest factor of annuity, 7%, 20 years)
= 4,000 + (35,000 / 10.5940)
= 4,000 + 3,303.75
= $7,303.75