Easiest method.

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Focus on the difference between feasible alternatives. Insulated concrete forms (ICF) can be used as a substitute for conventional wood framing in building construction. Heating and cooling bills will be about 50% less than in a similar wood-framed building in upstate New York. An ICF home will be approximately 10% more expensive to construct than a wood-framed home. For a typical 2,000 ft2 home costing $120 per ft2 to construct in upstate New York and costing $200 per month to heat and cool, how many months does it take for a 2,000 ft2 ICF home to pay back its extraconstruction cost?

Answer 1

Question

Chapter 6, Problem 36P

(a):

To determine

Easiest method.

(b):

To determine

Study period.

(c):

To determine

Calculate the annual worth.

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Focus on the difference between feasible alternatives. Insulated concrete forms (ICF) can be used as a substitute for conventional wood framing in building construction. Heating and cooling bills will be about 50% less than in a similar wood-framed building in upstate New York. An ICF home will be approximately 10% more expensive to construct than a wood-framed home. For a typical 2,000 ft2 home costing $120 per ft2 to construct in upstate New York and costing $200 per month to heat and cool, how many months does it take for a 2,000 ft2 ICF home to pay back its extraconstruction cost?

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A state is planning to construct a stretch of highway extending to 60 Kilometer. The state signed a contract based on the BOT option (Build, Operate, and Transfer) with a construction company. The construction company will finish the project in two years (30 kilometers per year), after which it will operate the highway for 25 years. The company generates revenues by collecting a flat fees from the cars using the highway. The following information is available: Cost/Kilometer: 1,000,000 S Number of cars using the highway: 500,000 car for the first year of usage, then increase by 5% a year. - Annual operation cost: 100,000 $ for the first year of usage, then increase by 10,000 $ every year. The company's MARR is 8% per year. Calculate the value of the fee charged/car so that the Net Present worth of the project is 25,000,000 S.