Data Sufficiency Articles

Data Sufficiency Strategies: Pieces of the Puzzle

by David Ragsdale on November 13, 2009

Even though Data Sufficiency questions test the same math content as Problem Solving questions, most GMAT students find that they can’t use the same strategies [...]


by Jake Becker on November 2, 2009

The best way to think of inequalities is as equations with slightly less specific information. Instead of providing an exact location, they provide a range [...]

Systems of Equations in Data Sufficiency

by Jake Becker on October 19, 2009

If the GMAT Quantitative section were 3 hours, all of our lives would be easier. We could take our time, work through each solution, check [...]

All About Exponents

by Martin Sobolewski on October 18, 2009

An exponent is a fancy way of writing the value of a number multiplied several times (up to infinity) by itself. 3 x 3 x [...]

Data Sufficiency Language

by John Fulmer on September 18, 2009

If an official looking man with a clipboard (clipboards automatically make the kookiest of the kooky look official) were to stop you on the street [...]

Winning The Data Sufficiency Game

by Ron Corcillo on September 17, 2009

In many ways, Data Sufficiency is like a high-stakes poker game.  The key to winning is to guess what your opponents want you to do [...]

Reasoning Strategies For Data Sufficiency Questions

by Jake Becker on August 22, 2009

Data sufficiency questions are typically not as straightforward as regular quantitative questions. Here are some strategies for eliminating definitively wrong answers: