The book Xam idea is a very good book for formal studies. Xam idea is very good book for those who are trying to score more marks in 10th board exam . this book is written in a simple way and understanding way.the reader of this book is very glad to have this book because in this book the multiple type question and value based questions are given in such a way that the reader of this book or 10th class students are understood in very simple way . the price of this book is 150rs. I suggest all the readrers of this book to buy and read and get successed in exams.