Amazon calculates a product's star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers and factors that establish reviewer trustworthiness.
Good book, has a plenty of logical questions along with examples easy to understand and great theory .A must have book for students of class 10.Go for it without any secondary thought . Its length is of 937 printed pages and is ultra new edition. Thanks for reading. Hope it's helpful .
This is the best book for class 10 cbse 2019 examination the content of book is so awesome that can a topper or average student both can achieve superb marks by only this book this book is so better than rd Sharma or any others never judge a book with its widthness or length but judge it with its content if u want to score 95+ then buy only this book