GMAT Official Guide 2021 (Paperback, 5)

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 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 103

4.5 Answer Explanations 105

5.0 Data Sufficiency 198

5.0 Data Sufficiency 199

5.1 Test-Taking Strategies 200

5.2 Section Instructions 202

5.3 Practice Questions 204

5.4 Answer Key 228

5.5 Answer Explanations 230

6.0 Reading Comprehension 322

6.0 Reading Comprehension 323

6.1 What is Measured 324

6.2 Test-Taking Strategies 332

6.3 Section Instructions 333

6.4 Practice Questions 334

6.5 Answer Key 397

6.6 Answer Explanations 398

7.0 Critical Reasoning 486

7.0 Critical Reasoning 487

7.1 What is Measured 487

7.2 Test-Taking Strategies 489

7.3 Reasoning Concepts to Know for the GMAT™ Exam 491

7.4 Section Instructions 497

7.5 Practice Questions 498

7.6 Answer Key 548

7.7 Answer Explanations 549

8.0 Sentence Correction 718

8.0 Sentence Correction 719

8.1 Some Comments About How It Works 719

8.2 The Eight Sentence Correction Categories 720

8.3 Study Suggestions 741

8.4 What is Measured 741

8.5 Test-Taking Strategies 742

8.6 Section Instructions 742

8.7 Practice Questions 743

8.8 Answer Key 779

8.9 Answer Explanations 780

9.0 Integrated Reasoning 888

9.0 Integrated Reasoning 889

9.1 What is Measured 890

9.2 Question Types and Test-Taking Strategies 891

9.3 Section Instructions 897

10.0 Analytical Writing Assessment 898

10.0 Analytical Writing Assessment 899

10.1 What is Measured 899

10.2 Test-Taking Strategies 900

10.3 The Directions 900

10.4 GMAT™ Scoring Guide: Analysis of an Argument 901

10.5 Sample: Analysis of an Argument 903

11.0 GMAT™ Official Guide Question Index 908

12.0 GMAT™ Official Guide Online Index 922

Appendix A Answer Sheets 932

Problem Solving Answer Sheet 933

Data Sufficiency Answer Sheet 935

Reading Comprehension Answer Sheet 937

Critical Reasoning Answer Sheet 938

Sentence Correction Answer Sheet 939