This book, now in its Third Edition, is revised as per the feedback received from our valuable students and readers. It is exclusively prepared for the students who wish to appear for campus recruitment screening test and graduate/post graduate students appearing for various competitive examinations in Quantitative Aptitude and Reasoning. The main objective of this volume is to guide the students to solve the problems within the stipulated time and that too with the higher degree of accuracy. Organized in two parts Quantitative Aptitude (Part I) and Reasoning (Part II) it helps students to apply basic mathematical and reasoning concepts to a range of quantitative and reasoning problems. 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. This book is a valuable resource for conducting training programmes/workshops to train students in problem solving techniques in Mathematical Aptitude. It would equally be useful to the candidates appearing for quantitative aptitude and reasoning test conducted in various competitive examinations of graduate level. NEW TO THIS EDITION Numerous Reasoning questions (with explanatory answers) asked in recent placement tests and competitive exams New topics on Four figure series Choosing one element of a similarly related pair Choosing set of similarly related figures Detecting one element of each of the two related pair Detecting the relationship and choosing the correct substitute Choosing the odd figure Choosing a similar figure Rule 4 [(i) and (ii)] in Rule detection