Anyone preparing for the Graduate Management Admission Test (GMAT) knows it's important to study with the experts. With The Official Guide for the GMAT Quantitative Review, Second Edition, you'll get questions, answers, and explanations straight from the source. The only official quantitative review for the GMAT Exam, this book targets your study and helps you improve your quantitative skills by focusing on your ability to solve equations, interpret data, coordinate geometry, and determine probability with assurance and ease. Inside, you'll find

• 300 actual questions from past GMAT tests, including 75 questions new to this edition
• Sections on Arithmetic, Algebra, Geometry, Problem Solving, and Data Sufficiency
• Questions organized in order of difficulty to save study time

The Graduate Management Admission Council certifies all content so you can trust that you're getting expert guidance as you prepare for the GMAT Exam.

The Graduate Management Admission Council (GMAC) is the association of leading graduate business schools around the world. GMAC's mission is to meet the needs of business schools and students through a wide array of products, services, and programs. It is the owner and administrator of the Graduate Management Admissions Test (GMAT), the first and only standardized test specifically designed for graduate business and management programs. Available in nearly 100 countries, it is the global standard for entry to the MBA degree course.

1.0 What Is the GMAT? 4

1.1 Why Take the GMAT Test? 5

1.2 GMAT Test Format 6

1.3 What Is the Content of the Test Like? 8

1.4 Quantitative Section 8

1.5 Verbal Section 8

1.6 What Computer Skills Will I Need? 9

1.7 What Are the Test Centers Like? 9

1.8 How Are Scores Calculated? 9

1.9 Analytical Writing Assessment Scores 10

1.10 Test Development Process 10

2.0 How to Prepare 12

2.1 How Can I Best Prepare to Take the Test? 13

2.2 What About Practice Tests? 13

2.3 Where Can I Get Additional Practice? 14

2.4 General Test-Taking Suggestions 14

3.0 Math Review 16

3.1 Arithmetic 18

3.2 Algebra 30

3.3 Geometry 37

3.4 Word Problems 50

4.0 Problem Solving 58

4.1 Test-Taking Strategies 60

4.2 The Directions 60

4.3 Sample Questions 62

4.4 Answer Key 86

4.5 Answer Explanations 87

5.0 Data Sufficiency 146

5.1 Test-Taking Strategies 148

5.2 The Directions 150

5.3 Sample Questions 152

5.4 Answer Key 163

5.5 Answer Explanations 164

Appendix A Percentile Ranking Tables 208

Appendix B Answer Sheets 213

Problem Solving Answer Sheet 214

Data Sufficiency Answer Sheet 215