I m very happy by purchasing this book its excellent book now I feel that I fully utilized my money by purchased this book in this book every topic has solo many question so u can easily practicr more and more questions and u don’t have to purchase any other books for practicing questions .my math is soo weeked but now I can solve solo many competitive question only by this book thanku rs aggarwal . I recommended this book to every one who want to crack competitive exams