You are the engineer who is responsible about renovation of your company headquarters. Two plans were proposed. Plan X involves remodeling the existing headquarters at a cost of $ 2.25 million. The expected useful life of the existing headquarters after remodeling is 25 years and the annual maintenance and operating (M&O) cost would be $126,000 per year. Plan Y involves building a new headquarters and selling the existing one with a net price of $750,000 three years from now. A total of 5 thousands square meter is required for the new headquarters. The cost of the land is estimated to be $366,000 per thousand square meters. The size of the building is 1 thousand square meter and the building will be 10 stories. The construction cost of the building is $150 per square meter and requires 5 years assuming 2 stories are built per year. In addition, the architect and contractor fees are expected to be $420,000. The expected useful life of the new headquarters is 50 years and the annual maintenance and operating (M&O) cost would be $116,000 per year. If the interest rate is i = 10% per year, evaluate which plan is better on the basis of:
(a) the present worth analysis
(b) the conventional B/C analysis
Based on the given data, pls find below the workings:
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