CONTENT
Who is the book for? p. 9
Chapter 1 Principles of the test ■ .p. 11
Chapter 2 Evaluation tests ■ p. 1 7
Chapter 3 How to use this book p. 23
■ PARTI Methodology common to AD and AST competitions 27
Sub-section 1.1. Basis of numerical reasoning ,.p. 29
Chapter 4 Basic operations ,..,p. 31
Chapter 5 How to simplify a ratio p. 37
Chapter 6 How to add or subtract two ratios ,p. 43
Chapter 7 How to multiply or divide two ratios p. 4V
Chapter 8 How to compare two ratios p. 55
Chapter 9 Fractions and percentages p. 61
Chapter 10 Should I use the calculator p. 65
Chapter 11 How io reduce the number of calculations ■ 69
Chapter 12 How to analyse a question p. 77
Subsection 1.2. Proportions p, S3
Chapter 13 Basic principles ......p. 85
Chapter 14 How to work out a proportion of a proportion p, 89
Chapter 15 Distribution problems ..p. 93
Chapter 16 Direct proportions p.101
Subsection 1.3. Variations p.105
Chapter 17 Basic principles p. 107
Chapter 18 Howto read tables p.l 13
Chapter 19 How to add up growth rates p.l 1 7
Averages p.127
Simple averages ..p.l 29
Weighted averages p.l35
■ PART 2 ADDITIONAL METHODOLOGY FOR AD COMPETITIONS p,143
Chapter 22 Problems involving combinations p.145
Chapter 23 Double direct and inverse proportions ,.p.155
Chapter 24 Partial and total growth rates p.161
■ PART 3 TESTS FOR AST COMPETITIONS p.169
Test AST/1 Proportions, ,p, 173
Test AST/2 Variations p.l 81
Test AST/3 Averages p,189
■ PART 4 TESTS FOR AD COMPETITIONS p J 9 7
Test AD/1 Proportions ,,.., , p. 201
Test AD/2 Variations p.209
Test AD/3 Averages p.21 7
Ш PART 5 ANSWERS TO TESTS FOR AST COMPETITIONS p.225
Answers to test AST/] Proportions ,..p.227
Answers to test AST/2 Variations p.237
Answers to test AST/3 Averages p, 247
* PART 6 ANSWERS TO TESTS FOR AD COMPETITIONS p.257
Answers to test AD/1 Proportions p.259
Answers to test AD/2 Variations .p.269
Answers to test AD/3 Averages p.281
Annex 1 Answers to evaluation tests p.291
Annex 2 Glossary .p.3Q9
Who we are p.315