- By Katharine Rudzitis
Many mathematical expressions on the GMAT can be factored using the difference of two squares formula: x2 – y2 = (x + y)(x – y). Applying this formula can save time, but sometimes it’s tough to recognize a...

- by Katharine Rudzitis
Traditional GMAT score reports include scores from the Verbal, Quantitative, and Integrated Reasoning sections of the GMAT, as well as the total score for the entire exam. However, these reports don’t provide...

By Katharine Rudzitis
Anyone planning to take the GMAT will sit through a Verbal Reasoning section, which includes questions on lengthy Reading Comprehension passages. These questions involve tasks related to the main idea, structure,...

- by Katharine Rudzitis
Average speed problems are common on the GMAT. These questions can be tricky if you haven’t practiced solving them, because the most obvious answer choice is a trap. To see why, try the following problem:
Joe drives...

In the last article, we learned the algebraic approach and the input-output approach for solving questions with variables in the answer choices (VIACs). In that article, I ended by saying that, while the input-output approach is often...

Not all GMAT practice questions are equal. Learn to spot substandard GMAT questions so you don’t waste precious study time and energy.
by Brent Hanneson and David Sovka, GMAT Prep Now.
Just like your grandmother probably told you, the...

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 residents, and Y of them...

Consider the following two questions:
Question #1: If 10 is the greatest common divisor of positive integers x and y, and 20 is the lowest common multiple of x and y, what is the value of xy?
A) 15
B) 20 C) 30
D) 100
E) 200
Question #2...

by Patti Conner
While it's one thing to be well-prepared for the analytical writingsection of the GMAT, it's another to feel completely confident about how you approach telling your own story in your MBA application.
There are plenty of...

Algebraic techniques can often help us solve word problems. The process typically involves assigning one or more variables, writing an equation (or two or three), and then solving that equation. It sounds easy enough, but creating an...