Are you still unprepared for the GMAT? Catch up with the Official Guide.

GMAT Official Guide 2021 is the only study guide written by the Graduate Management Admission Council, the makers of the GMAT exam. Get a competitive edge by studying the guide's 950+ questions. The questions are arranged from simplest to hardest, so you'll be able to consistently increase your knowledge as you fly through the guide.

Access online the 950 questions in the book (plus an additional 150 online only questions!) complete with detailed answer keys and strategies direct from the makers of the GMAT. You can even use the mobile app to study while you’re at work or school. It's easy to work seamlessly between all of your devices!

GMAT Official Guide 2021 comes with:

• Detailed descriptions of the GMAT’s format and content
• Comprehensive strategies for performing well on the GMAT
• Online flashcards to help you retain what you read
• Complete grammar and quantitative reviews
• Actual GMAT essay topics along with sample responses and scoring info

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^™ v

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 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 Using GMAT Official Prep Products 11

2.3 Where Can I Get Additional Practice? 12

2.4 General Test-Taking Suggestions 12

3.0 Diagnostic Test 14

3.0 Diagnostic Test 15

3.1 Quantitative Questions 16

3.2 Verbal Questions 23

3.3 Quantitative and Verbal Answer Keys 40

3.4 Interpretive Guide 40

3.5 Quantitative Answer Explanations 41

3.6 Verbal Answer Explanations 60

4.0 Math Review 100

4.0 Math Review 101

4.1 Arithmetic 102

4.2 Algebra 114

4.3 Geometry 122

4.4 Word Problems 134

5.0 Problem Solving 142

5.0 Problem Solving 143

5.1 Test-Taking Strategies 144

5.2 Section Instructions 144

5.3 Practice Questions 146

5.4 Answer Key 182

5.5 Answer Explanations 184

6.0 Data Sufficiency 266

6.0 Data Sufficiency 267

6.1 Test-Taking Strategies 268

6.2 Section Instructions 270

6.3 Practice Questions 272

6.4 Answer Key 295

6.5 Answer Explanations 297

7.0 Reading Comprehension 386

7.0 Reading Comprehension 387

7.1 What is Measured 388

7.2 Test-Taking Strategies 396

7.3 Section Instructions 397

7.4 Practice Questions 398

7.5 Answer Key 461

7.6 Answer Explanations 462

8.0 Critical Reasoning 550

8.0 Critical Reasoning 551

8.1 What is Measured 551

8.2 Test-Taking Strategies 553

8.3 Reasoning Concepts to Know for the GMAT Exam 555

8.4 Section Instructions 561

8.5 Practice Questions 562

8.6 Answer Key 609

8.7 Answer Explanations 610

9.0 Sentence Correction 760

9.0 Sentence Correction 761

9.1 Some Comments About How It Works 761

9.2 The Eight Sentence Correction Categories 762

9.3 Study Suggestions 783

9.4 What is Measured 783

9.5 Test-Taking Strategies 783

9.6 Section Instructions 784

9.7 Practice Questions 785

9.8 Answer Key 815

9.9 Answer Explanations 816

10.0 Integrated Reasoning 902

10.0 Integrated Reasoning 903

10.1 What is Measured 904

10.2 Question Types and Test-Taking Strategies 905

10.3 Section Instructions 911

11.0 Analytical Writing Assessment 912

11.0 Analytical Writing Assessment 913

11.1 What is Measured 913

11.2 Test-Taking Strategies 914

11.3 The Directions 914

11.4 GMAT^™ Scoring Guide: Analysis of an Argument 915

11.5 Sample: Analysis of an Argument 917

11.6 Analysis of an Argument Sample Topics 921

12.0 Official Guide Question Index 954

13.0 GMAT^™ Official Guide Online Index 968

Appendix A Answer Sheets 977

Diagnostic Answer Sheet—Quantitative 977

Diagnostic Answer Sheet—Verbal 977

Problem Solving Answer Sheet 978

Data Sufficiency Answer Sheet 979

Reading Comprehension Answer Sheet 980

Critical Reasoning Answer Sheet 981

Sentence Correction Answer Sheet 982