Engineering Economics
What is defined as the reduction of the value of certain natural resources such as mines, oil, timber, quarries, etc. due to the gradual extraction of its contents?

Depreciation
Deflation
Depletion
Inflation

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Engineering Economics
The institute of Electronics and Communications Engineers of the Philippines (IECEP) is planning to put up its own building. Two proposals being considered are:A. The construction of the building now to cost P 400,000B. The construction of a smaller building now to cost P300,000 and at the end of 5 years, an extension to be added to cost P 200,000.By how much is proposal B more economical than proposal A if interest rate is 20% and depreciation to be neglected?

P 19,423.69
P 19,624.49
P 19,518.03
P 19,122.15

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