To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
Chapter wise questions makes learning easier. Latest Board solved papers are given. How to answer and some commonly made mistakes are given so that errors are not made in exam. Revision notes help in learning quickly and revision at the time of exam