This book is for students preparing for the entrance examinations of IITs and other engineering colleges, IIITs, and so on. Different types of questions that are possible in the multiple-choice format have been included in the book. Answers to all the questions, and hints and solutions to difficult questions have been given at the end of each chapter. At the end of the book fully solved IIT-JEE questions from the past have been given. Also included are sample question papers for practice.