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.

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 Will the Test Experience Be Like? 5

1.4 What is the Content of the GMAT^™ Exam Like? 6

1.5 Analytical Writing Assessment Section 6

1.6 Integrated Reasoning Section 7

1.7 Quantitative Reasoning Section 7

1.8 Verbal Reasoning Section 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 Getting Ready for Exam Day 11

2.3 How to Use the GMAT^™ Official Guide Quantitative Review 12

2.4 How to Use Other GMAT^™ Official Prep Products 12

2.5 General Test-Taking Suggestions 13

3.0 Math Review 16

3.0 Math Review 17

3.1 Value, Order, and Factors 18

3.2 Algebra, Equalities, and Inequalities 27

3.3 Rates, Ratios, and Percents 41

3.4 Statistics, Sets, Counting, Probability, Estimation, and Series 54

3.5 Geometry 72

3.6 Reference Sheets 92

4.0 Problem Solving 108

4.0 Problem Solving 109

4.1 Test-Taking Strategies 110

4.2 Section Instructions 110

4.3 Practice Questions 112

4.4 Answer Key 145

4.5 Answer Explanations 147

5.0 Data Sufficiency 222

5.0 Data Sufficiency 223

5.1 Test-Taking Strategies 224

5.2 Section Instructions 225

5.3 Practice Questions 226

5.4 Answer Key 243

5.5 Answer Explanations 244

6.0 GMAT^™ Official Guide Quantitative Review Question Index 308

6.0 GMAT^™ Official Guide Quantitative Review Question Index 309

Appendix A Answer Sheets 322

Problem Solving Answer Sheet 323

Data Sufficiency Answer Sheet 325

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