It is with great pleasure that we present the CBSE Data Science Class 10 Subject Code: 419 Unsolved Papers (2023 & 2024). This compilation is designed to provide students with a valuable resource to aid their preparation for the upcoming board examinations. Data Science is an emerging field that combines various aspects of mathematics, statistics, and computer science to extract meaningful insights from data. As such, it is essential for students to develop a strong foundation in this subject, and practicing past papers is a proven method to enhance their understanding and performance.The unsolved papers included in this book are official board papers released by CBSE for the years 2023 and 2024. These papers have been curated to reflect the latest trends and patterns in the examination, giving students a clear idea of what to expect on the day of the exam. By working through these papers, students can identify areas where they need improvement, familiarize themselves with the types of questions commonly asked, and develop effective time management strategies.The primary goal of this book is to encourage self-assessment and critical thinking. We strongly recommend that students attempt these papers under timed conditions, simulating the real exam environment as closely as possible. This approach will not only help in building confidence but also in honing the skills required to tackle the examination successfully.We have taken great care to ensure that the content of this book is accurate and aligned with the CBSE curriculum. The questions are arranged in a manner that allows for progressive learning, starting from basic concepts and gradually moving towards more complex topics. This structure is intended to help students strengthen their knowledge base while also challenging them to think critically and analytically.