GMAT Math Articles

If you’re going to do a great job on Data Sufficiency, then you’ve got to know how to Test Cases. This strategy will help you on countless DS problems. Try this GMATPrep® problem from the free exams. Give yourself … Read More

In this article, we’ll examine two different approaches you can take when solving questions with variables in the answer choices (also known as VIACs). To begin, please try the following question: Townville has X … Read More

Ah, autumn. The busiest GMAT season of the year as application deadlines fill the air, and that season always coincides with Major League Baseball’s pennant races and playoffs. And whether you are a baseball fan or … Read More

There really is no easier/quicker way to solve volume problems than knowing your formulas. So let’s start out the week with this short video to refresh your memory on cylinders. GMAT Prep MiniLesson: Cylinders by … Read More

It’s no secret that there are several strategies for tackling quantitative problems on the GMAT, but you may not have realized that combining methods creates even more options. Let’s take a look at the following … Read More

Here are four reasonably challenging problems about sets. 1) At a certain school of 200 students, the students can study French, Spanish, both or neither. Just as many study both as study neither. One quarter of those … Read More

Succeeding on the GMAT requires a great many things. Firstly, you must be able to decipher and solve complex logic puzzles in mere minutes. Secondly, you must be able to maintain focus for many consecutive hours. The … Read More

Questions on the GMAT can be described in many different ways. I’ve heard them described as everything from juvenile to vexing, simple to impossible. One term that appears very infrequently as a characteristic of the … Read More

Today we look at ways to achieve that much desired score of 51 in Quant. Obviously, we don’t need Sheldon Cooper’s smarts to realize that for that revered high score, we must do well on the high level questions but … Read More

Coordinate geometry, or Cartesian geometry, is the study of geometry using a coordinate system and the principles of algebra and analysis. The Coordinate Plane In coordinate geometry, points are placed on the … Read More

A polygon is a closed 2D shape with all the straight lines. A quadrilateral is a polygon with 4 sides or edges and four vertices or corners and the sum of its angles equals 360°. There are 5 types of quadrilaterals and … Read More

Consider the following two questions: Question #1: If 10 is the greatest common divisor of positive integers and , and 20 is the lowest common multiple of and , what is the value of ? A) 15 B) 20 C) 30 D) 100 E) 200 … Read More

There are few things more alluring than shortcuts. Oftentimes we are aware of how much work, effort or time is required to accomplish a task, but we naturally gravitate towards something that can accomplish that task … Read More

A function is a rule that takes an input and gives an output. When we are told the equation of a function, that equation makes explicit the rule this particular function is following. For example, for the function , the … Read More