**Data Sufficiency Topics**

The GMAT Quantitative section tests your ability to use your basic mathematical knowledge and your ingenuity in analyzing problem statements to determine *data sufficiency*. You don’t actually solve these problems, but rather you determine the sufficiency of the data given for solving the problems. To prepare you for Data Sufficiency questions *gmatmath.online* gives thorough coverage to questions of this type in nine different topical areas. To get the widest selection of these advanced problems, go to the **Subscriber** section of the site.

On the Public side of the site, we thoroughly explain the Data Sufficiency concept, with an **Explanatory Page**, and three illustrative **Videos**. We also have a large selection of Data Sufficiency questions, which you can find at these locations: