GMAT Companion - Data Sufficiency & Problem Solving

GMAT Companion is designed to provide all the practice you need to succeed in the GMAT examination, the gateway to the MBA, EMBA or other graduate business programs. Questions cover a scale of difficulty and relate to all areas tested in the Quantitative section, including Data Sufficiency and Problem Solving in algebra, arithmetic and geometry. Answers to all questions are provided for systematic self-checking. Written by professional math experts, the 500+ practice questions in this book will help you reach a whole new level of math competency, speed and accuracy.