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Archive | Logic

GRE Math Multi-subject Challenge Question

Once in a while it is fun to take a concept in an official GRE question and run with it. The question below is inspired by a question from the 2nd edition Official Guide. That is not to say it is that similar; I have only extracted a couple of concepts from that problem. I’ve […]

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Strange Symbols in GRE Math Operations

Quite possibly the most intimidating problem on the GRE contains strange symbols: @, #, *, or a black circle often accompany these problems. Many recoil in horror thinking – I’ve never learned that before! (Or perhaps more aptly, what the @#?!) But don’t despair – the symbols are completely arbitrary and are defined on the […]

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GRE Quantitative Comparison Tip #3 – Logic over Algebra

In previous posts (Tip #1 – Dealing with Variables, Tip #2: Striving for Equality), I have discussed two approaches when tackling Quantitative Comparison (QC) questions involving variables. Those approaches are: 1) Apply algebraic techniques 2) Plug in numbers In those posts, I noted that the algebraic approach is typically the faster and more reliable approach. […]

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