Engineering Economics
If ‘P’ is principal amount, ‘i’ is the rate of interest and ‘n’ is the number of periods in years, then the interest factor is:

(ni - 1)
(1 + ni)
None of these
ni

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Engineering Economics
A construction estimate is used

To decide an approximation of the value of the project and not the exact cost
To judge tentatively or approximate value of the project
To produce a statement of the approximate cost
None of these

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