medium · GMAT Quant
An inventory management system assigns a serial code x to items, where x is an integer such that 10 ≤ x ≤ 250. The relative efficiency metric for each item is expressed as dfracx - 2540.
For how many serial codes x in the inventory is the efficiency metric represented by a terminating decimal?
- 8
- 9
- 10
- 27
- 80
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