Book excerpt: Perfect Sample Papers is a series prepared as per the guidelines, syllabus and marking scheme issued by CBSE for Class X Summative Assessment II . The salient features of Perfect Sample Papers are: • The questions in the sample papers have been so designed that complete syllabus is covered. • Solutions to the first five sample papers are given. Students are advised to attempt these papers first, and take help from the solutions provided in the book to identify their weak areas and improve them. • Additional ten unsolved sample papers for practice will help students gain confidence. • The questions in the sample papers are of varying difficulty level and will help students evaluate their reasoning, analysis and understanding of the subject matter.