**About the Author**

*Jeff Sackmann has been helping students like you reach their GMAT score goals for nearly a decade. Jeff began as a star tutor and classroom teacher for a big test-prep company. Since 2006, he has focused on developing the best materials in the industry, saving you time, money, and stress.*

*Based in New York City, Jeff has created many resources for GMAT preparation, including the popular*

**Total GMAT Math**and**Total GMAT Verbal**, as well as**1,800 practice GMAT math questions**and his**Guides to the Official Guide**.## Total GMAT Math Excerpt: Rates

As you may know, this week I released the long-awaited Total GMAT Math. As promised, today I'm offering a free excerpt from the book. It's the entire section, which covers everything from the basics to much more complicated rate problems that show up on the GMAT. It also includes several drill and practice questions

Remember that, in Total GMAT Math itself, every chapter (there are over forty of them, covering every topic on the test!) is followed by 10-20 exercises designed to test whether you understand the concepts. Then there are between five and ten realistic practice GMAT problems to further help you master the subject.

Click here for the excerpt in PDF format!

If you'd like to buy Total GMAT Math, click here for a variety of purchase options.