Official Guide for GMAT Quantitative Review 2015 With Online Question Bank and Exclusive Video

1.0 What Is the GMAT®? 4
1.0 What Is the GMAT®? 5

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

2.0 How to Prepare 13

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

3.0 Math Review 17

3.1 Arithmetic 18

3.2 Algebra 30

3.3 Geometry 37

3.4 Word Problems 50

4.0 Problem Solving 58

4.0 Problem Solving 59

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

5.0 Data Sufficiency 147

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 211

Problem Solving Answer Sheet 212

Data Sufficiency Answer Sheet 213