Engineering Economics
If ‘P’ is principal amount, ‘I’ is the rate of interest per annum and ‘n’ is the number of periods in years, the compound amount factor (CAF) is:

None of these
(1 + i)(1/2n)
√(n + i)
(1 + i)n

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Engineering Economics
Pick up the correct reason for making conceptual (or preliminary) estimate from the following:

To check quotations from contractors and/or sub-contractors
To compute target estimate for the owner while drawing and specifications are in initial stage
To have a check on a definitive cost estimate
All of these

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