Thursday, September 17, 2009

Substitution in GMAT questions

While I'm going over some GMAT questions (sometimes called "700-score questions"), some of them looks like really hardcore ones, which require long equations to be solved, etc. However, it turns out that the most of them can be solved with straight number substitution and iterating over set to discover a good answer. That's an interesting remark to myself, and I'm going to spend some time on not solving complex "universal" equations, but get a little bit down to earth and solve what's needed only right here and only right now.

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