## The GMAT/MBA Library

Explore the world's largest collection of GMAT prep and MBA admissions content.

#### GMAT Function and Sequence Problems for High Quant Score

by Target Test Prep on December 24, 2015

Practice high-value GMAT Function and Sequence problems with Target Test Prep GMAT experts Scott Woodbury Stewart and Jeffrey Miller.

#### GMAT Problem Solving Strategy: Test Cases

by Manhattan Prep on March 17, 2015

#### GMAT Data Sufficiency Strategy: Test Cases

by Manhattan Prep on November 14, 2014

If you’re going to do a great job on Data Sufficiency, then you’ve got to know how to Test Cases.

#### GMAT Avengers Study Group: Functions

by Rahul Sehgal on September 12, 2014

Gain valuable tips on how to tackle Function questions from our GMAT Avengers group.

#### Want a 51 on Quant? Answer This Problem!

by Manhattan Prep on January 24, 2014

Learn “test savvy” techniques that will help you solve math sequence questions.

#### GMAT Quant Practice #4

by MBAover30 on July 25, 2013

It’s GMAT time for a lot of your right now. I’ve spoken with a number of you who are taking the exam in a few [...]

#### Manhattan GMAT Challenge Problem of the Week – 22 October 2012

by Manhattan_Prep on October 22, 2012

Apply the definitions of the two functions to solve this week's challenge.

#### Manhattan GMAT Challenge Problem of the Week – 1 October 2012

by Manhattan_Prep on October 1, 2012

To solve this week's challenge create a variable to represent calendar years since January 1, 2012.

#### GMAT Basics: Simplifying Algebraic Expressions

by Vivian Kerr on September 1, 2011

Refresh your knowledge of equations and functions basics by trying out these exercises.

#### 3 Tips for Confusing Function Questions

by Vivian Kerr on June 14, 2011

Function questions can be some of the most confusing math questions appearing on the GMAT.  Remember these 3 tips to attack these often complicated questions.

#### Breaking Down a GMATPrep Exponential Equations Problem

by Manhattan Prep on November 13, 2010

This week, we’re going to tackle a harder GMATPrep® problem solving question from the topic of Exponential Equations (a subset of Algebra). Let’s start with the [...]

#### Manhattan GMAT Challenge Problem of the Week – 9 Nov 2010

by Caitlin Clay on November 9, 2010

Here is a new Challenge Problem! If you want to win prizes, try entering our Challenge Problem Showdown. The more people enter our [...]

#### Manhattan GMAT Challenge Problem of the Week – 27 July 2010

by Caitlin Clay on July 27, 2010

Here is a new Challenge Problem! If you want to win prizes, try entering our Challenge Problem Showdown. The more people enter our [...]

#### Manhattan GMAT Challenge Problem of the Week – 29 Apr 10

by Michael Dinerstein on April 29, 2010

For which of the following functions f(x) is the relation f(f(x)) = f(f(f(f(x)))) NOT true for at least some values of xnot equal to zero?

#### Manhattan GMAT Challenge Problem of the Week – 11 Feb 10

by Michael Dinerstein on February 11, 2010

Welcome back to this week’s Challenge Problem! As always, the problem and solution below were written by one of our fantastic instructors. Each challenge problem [...]