The Graduate Management Admissions 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, and the organization serves as a primary resource of research and information about quality graduate management education. GMAC is the owner and administrator of the Graduate Management Admissions Test (GMAT). Created in 1954, the GMAT is the first and only standardized test specifically designed for graduate business and management programs. Available in over 100 countries, it is the global standard for entry to the MBA degree course. Currently about 2,100 schools and 5,900 programs have adopted the GMAT, and the test is taken approximately 250,000 times annually.

Table of Contents Letter from the President and CEO, GMAC™ vii

1.0 What is the GMAT™ Exam? 2

1.0 What is the GMAT™ Exam? 3

1.1 Why Take the GMAT™ Exam? 3

1.2 GMAT™ Exam Format 4

1.3 What is the Content of the Exam Like? 6

1.4 Analytical Writing Assessment Section 6

1.5 Integrated Reasoning Section 6

1.6 Quantitative Reasoning Section 7

1.7 Verbal Reasoning Section 7

1.8 What Are the Test Centers Like? 7

1.9 How Are Scores Calculated? 8

2.0 How to Prepare 10

2.0 How to Prepare 11

2.1 How Should I Prepare to Take the Test? 11

2.2 How to Use the GMAT™ Official Guide Quantitative Review 11

2.3 How to Use Other GMAT™ Official Prep Products 12

2.4 General Test-Taking Suggestions 12

3.0 Math Review 16

3.0 Math Review 17

3.1 Arithmetic 18

3.2 Algebra 30

3.3 Geometry 38

3.4 Word Problems 50

4.0 Problem Solving 58

4.0 Problem Solving 59

4.1 Test-Taking Strategies 60

4.2 Section Instructions 60

4.3 Practice Questions 62

4.4 Answer Key 95

4.5 Answer Explanations 97

5.0 Data Sufficiency 172

5.0 Data Sufficiency 173

5.1 Test-Taking Strategies 174

5.2 Section Instructions 176

5.3 Practice Questions 178

5.4 Answer Key 195

5.5 Answer Explanations 196

6.0 GMAT™ Quantitative Review Question Index 260

7.0 GMAT™ Official Guide Quantitative Review Online Index 270

Appendix A Answer Sheets 276

Problem Solving Answer Sheet 277

Data Sufficiency Answer Sheet 279

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