easy · GMAT Quant
An inventory analyst calculates a packaging index P(k) for a shipment of k units, where k is a positive integer, using the expression lfloor dfrack2 rfloor + lceil dfrack2 rceil.
Which of the following expressions is equivalent to P(k) for all positive integers k?
- k
- k + 1
- 2k
- lfloor dfrack2 rfloor
- (-1)^k k
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