Mastering Inequality Questions on the GMAT - Videos

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Brian Galvin, Veritas Prep’s Director of Academic Programs, demonstrates how to smartly work with inequalities in GMAT Quant problems.

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13 COMMENTS

  1. how does that address the question stems individually? You skipped straight to the answer of E which I understand when combining both questions, but I do not understand the question stems separately.

  2. At 3:05, I don't understand… how did you get y>2? If you replace "y" by 2.1 then 2*2.1= 4.2 and therefore does not seems to be greater than 7 doesn't "y" has to be between 3.5 and 5 ? I'm not sure…
    Thanks you very much for the tip!

  3. If Y must be positive, and X cannot be either. It would be logically flawed to say that X can be negative if Y must be positive, because X multiplied by Y must be greater then 0. If Y is positive, and x is negative the answer is inherently negative and therefor less then 0.

    Thoughts? Not sure if this was supposed to work out this way for your example but I get the concept and strategy thanks.

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