This book focuses on problem-solving which is important from the point of view of the All India EntranceExaminations for engineering and medicine such as IIT-JEE AIEEE JIPMER entrance examination and JAM CSIR NET GATE and UPSC examinations. A special feature is that a brief theory is presented before attemptingto solve objective and subjective problems. The book includes examination questions from IIT-JEE CSIR NETand GATE examinations. It will be very useful for the student community a