GMAT Club Tests | Re: M19-36

Hi Bunuel,

With all due respect, I want to point out that there is something wrong with the question and the explanation you have provided to one of the fellow students.

The GIF value of an integer I is the integer I itself and not I-1, something that you have stated and the explanation implies.
It can be understood by the definition and graph plot of the GIF function.
[x] : the greatest integer less than or equal to x. Equal when I is an integer of course.
[6.4]=6
[6]=6
[-6.4]=-7

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