We’ve got another GMATPrep® word problem on tap for today, but this one’s in the area of divisibility (number properties). These kinds of problems often include a lot of math vocab; we need to make sure both that we understand the precise words used and concepts being described and that we don’t forget or overlook [...]

In this article, we’re going to tackle a challenging GMATPrep® problem solving question from the topic of Percents.  (The GMATPrep® software can be downloaded for free at MBA.com) Let’s start with the problem. Set your timer for 2 minutes… and… GO! *Before being simplified, the instructions for computing income tax in country R were to [...]

This week, we’re going to tackle a challenging GMATPrep® problem solving question from the topic of Rates & Work. Let’s start with the problem. Set your timer for 2 minutes…. and… GO! *Circular gears P and Q start rotating at the same time at constant speeds. Gear P makes 10 revolutions per minute, and gear [...]