Elementary particle physics is a mature subject, with a wide variety of topics. Each topic in the textbook was selected for its accessibility to as wide an audience of interested readers as possible, without any compromise in mathematical sophistication. The text was supplemented by exercises at the end of each chapter, designed to increase the reader's skills and to instill in undergraduates an ability to enjoy this interesting subject. The present book works out the solutions to the exercises in the textbook and can be used for better comprehension of the topics.