Contents Preface Part I Quantitative Aptitude 1 HCF and LCM 2 Permutation and Combination 3 Probability 4 Ratio and Proportion 5 Percentage 6 Average 7 Problems Based on Ages 8 Profit and Loss 9 Squares and Square Roots 10 Cubes and Cube Roots 11 Series 12 Progression and Sequence 13 Fractions 14 Elementary Algebra I 15 Elementary Algebra II 16 Partnership 17 Simple Interest 18 Compound Interest 19 Time and Work 20 Work and Wages 21 Pipes and Cistern 22 Alligation 23 Problems on Trains 24 Boats and Streams 25 Elementary Mensuration I 26 Elementary Mensuration II 27 Problems on Clocks 28 Problems on Calendar 29 Time and Distances 30 Heights and Distances 31 Trigonometry 32 Odd Man Out and Series 33 Data Sufficiency 34 Data Analysis 35 Mathematical Operations 36 Divisibility37 Number System 38 Arithmetical Reasoning Part II REASONING Section A General Mental Ability 1 Analogy 2 Classification 3 Series Completion 4 Coding and Decoding 5 Blood Relations 6 Puzzle Test 7 Direction Sense Test 8 Logical Venn Diagrams 9 Number Ranking and Time Sequence Test 10 Decision Making 11 Assertion and Reason 12 Situation Reaction Test 13 Mathematical Operations 14 Inserting the Missing One 15 Logical Sequence of Words Section B Logical Deduction 16 Logic 17 Statements and Arguments 18 Statements and Assumptions 19 Statements and Course of Action 20 Statements and Conclusions 21 Deriving Conclusions from Passages Section C Nonverbal Reasoning 22 Series 23 Analogy 24 Classification 25 Analytical Reasoning 26 Problems on Cubes and Dice 27 Mirror ImagesIn today?s competitive world quantitative aptitude and reasoning play a prominent role in almost all competitive examinations and job recruitment exams Keeping its importance in mind this book is designed to familiarize the aspirants with basic mathematical and reasoning concepts It enables them to apply to a range of quantitative and reasoning problems The text is organized in two parts Quantitative Aptitude Part I and Reasoning Part II The separate sections are devoted to verbal and nonverbal reasoning It sharpens the ability to apply analytical and logical thinking while gathering and analysing information designing and testing solutions to problems and formulating plans The main objective of this book is to guide the students to solve the problems within the stipulated time and that too with the higher degree of accuracy Each chapter contains numerous worked-out examples and practice exercises The questions range from purely numeric calculations to problems of arithmetic reasoning graph and table reading percentage analysis and quantitative analysis This book is intended for the students appearing for quantitative aptitude and reasoning test conducted in various competitive examinations such as civil services common admission test CAT Management Aptitude Test MAT staff selection commission SSC combined defence services CDS National Defence Academy NDA LIC Assistant Administrative Officer AAO bank clerical bank PO income tax and central excise exams Apart from that the book is also useful for the students preparing for the campus recruitment screening test and the undergraduate students of mathematics for their course in Aptitude Examination 680 pp.