medium · GMAT Quant
A records office holds case files numbered consecutively from 1 to 26. Exactly three of the case files will be selected, and the order of selection does not matter.
In how many different ways can the three case files be selected so that the product of their numbers is even?
- 286
- 1,014
- 2,314
- 2,380
- 13,884
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