Hello! I'm glad to see your interest in the book "Quantitative Aptitude & Numerical Ability Useful for all Competitive Exams - By Kiran Prakashan." Unfortunately, I cannot provide a PDF file of that book as it is copyrighted material. However, I can help answer any specific questions you may have from the book or provide explanations on various topics related to quantitative aptitude and numerical ability. Just let me know how I can assist you further. Thank you!