Quicker math ny m tyra is one of best book for the enterance exam .i used this book for the prepration of ssc exam and bank exam.this is complete book which contain complete syllbus of compititative .move over trick are explained in a very lucid way.moreover this book is also good for the secondary school student because in this book there are various method to solve different type of problem . In this book they start from basic level and step by step level is increased .question for practice to make student more confident also available in this book.