I had bought this book when I was in 10th standard in the year 2016 for maths so that I can excel in this subject and make a good score in the SSC examination.
But after solving the book I felt more demotivated as it contained a lot of questions which were even not in the syllabus of 10th standard and were picked from the higher standards which could make a average student like me to feel very demotivated.
I stopped focusing on this book and after gathering some courage I started with the ncert books.
I would recommend an average like me to purchase this book for maths subject.