Answers
GMAT Quant practice questions - Algebra (Fundamentals)
- Course
- Institution
This document contains 100 GMAT practice questions for: - Algebra (Fundamentals)
[Show more]
Seller
Follow
jasperhoogendoorn
Reviews received
Content preview
GMAT Algebra: FundamentalsJeff Sackmann / GMAT HACKS
January 2013
Contents
1 Introduction 2
2 Difficulty Levels 3
3 Problem Solving 4
4 Data Sufficiency 15
5 Answer Key 21
6 Explanations 24
1
, Jeff Sackmann
www.gmathacks.com
1 Introduction
This document contains nothing but GMAT Algebra questions–100 of them, to
be exact. They are designed to build your skills on some of the most important
topics on the GMAT. Algebraic topics such as isolating a variable, solving a
quadratic, and managing exponents and roots are not only key components of
GMAT Algebra problems, but they underpin a wide range of questions from
word problems to geometry to number properties.
As in all of my GMAT preparation resources, you’ll find these questions
indexed by difficulty.
For further, more specific practice, I have produced several other resources
that may help you. Just about every subject covered on the GMAT has some-
thing to do with Algebra, but the group that has the most in common are Word
Problems. Many students find that translating Word Problems to Algebra is
one of the biggest challenges on the test. If you find yourself in that group, try
my ”Word Problems: Fundamentals” set, or give a try to ”Ratios, Rates, and
Percents,” which focuses solely on those three content areas.
Also, Total GMAT Math has several chapters (along with focused practice)
on Algebra and related issues, including individual chapters on fractions, deci-
mals, simplifying expressions, linear equations, systems of equations, quadratic
equations, inequalities, absolute value, exponents, roots, and more. If you find
you are struggling with the mechanics of these problems, your time is probably
better spent with the Total GMAT Math than in doing dozens and dozens of
practice problems, hoping to pick up those skills along the way.
There are plenty of articles at gmathacks.com to help you with your strategic
approach to GMAT Math questions. Most importantly, you should make sure
you understand every practice problem you do. It doesn’t matter if you get it
right the first time–what matters is whether you’ll get it right the next time you
see it, because the next time you see it could be on the GMAT.
With that in mind, carefully analyze the explanations. Redo questions that
took you too long the first time around. Review questions over multiple sessions,
rather than cramming for eight hours straight each Saturday. These basic study
skills may not feel like the key to GMAT preparation, but they are the difference
between those people who reach their score goals and those who never do.
Enough talking; there are 100 Algebra questions waiting inside. Get to
work!
2
Copyright 2008-13 Jeff Sackmann
www.gmathacks.com
, Jeff Sackmann
www.gmathacks.com
2 Difficulty Levels
In general, the level 5 questions in this guide are 500- to 560-level questions.
The level 4 questions represent a broad range of difficulty from about 380 to
500, while the level 3 questions are lower.
Easy (3)
PS
3, 17, 26
DS
66, 98
Moderately Easy (4)
PS
2, 5, 6, 8, 20, 24, 25, 28, 31, 34, 35, 36, 37, 41, 45, 47
DS
52, 55, 57, 59, 60, 62, 64, 65, 67, 68, 69, 71, 72, 73, 74, 76, 77, 81, 82, 83, 84,
85, 88, 89, 91, 92, 93, 94, 95, 96, 99
Moderate (5)
PS
1, 4, 7, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 21, 22, 23, 27, 29, 30, 32, 33, 38,
39, 40, 42, 43, 44, 46, 48, 49, 50
DS
51, 53, 54, 56, 58, 61, 63, 70, 75, 78, 79, 80, 86, 87, 90, 97, 100
3
Copyright 2008-13 Jeff Sackmann
www.gmathacks.com
, Jeff Sackmann
www.gmathacks.com
3 Problem Solving
Note: this guide contains both an answer key (so you can quickly check your
answers) and full explanations.
3 2
1. If 6 − m =4+ n and m = 12 , then n =
(A) −8
(B) −2
(C) − 21
1
(D) 2
(E) 2
2. If x = − 13 , then 1 − x − x2 − x3 =
1
(A) 3
13
(B) 27
14
(C) 27
7
(D) 1 27
(E) 1 13
3. For a certain year, a charitable organization has set a fundraising
goal of $72,000, divided into 12 equal monthly allocations. If the
organization raised $20,000 in the first three months, by how
much has it exceeded its goal for the first three months?
(A) $200
(B) $400
(C) $600
(D) $1,100
(E) $2,000
4. If y 2 = 3z 3 and 2z = 4, what is the value of y 2 + z ?
√
(A) 2 √7
(B) 2( 6 + 1)
(C) 26
(D) 28
(E) 32
4
Copyright 2008-13 Jeff Sackmann
www.gmathacks.com
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller jasperhoogendoorn. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.45. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
76449 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now