GMAT Official Guide 2018 Quantitative Review: Book + Online (Official Guide for Gmat Quantitative Review) From the Back Cover GMAT™ Official Guide Quantitative Review 2018 Book + Online  BUILD YOUR OWN PRACTICE SETS with questions from this guide at gmat.wiley.com SUPPLEMENT THE GMAT® OFFICIAL GUIDE with 300 additional questions organized in order of difficulty from easiest to hardest  Visit mba.com, the official GMAT® website  About the Author The Graduate Management Admissions Council (GMAC) is the association of leading graduate business schools around the world. GMAC's mission is to meet the needs of business schools and students through a wide array of products, services, and programs, and the organization serves as a primary resource of research and information about quality graduate management education. GMAC is the owner and administrator of the Graduate Management Admissions Test (GMAT). Created in 1954, the GMAT is the first and only standardized test specifically designed for graduate business and management programs. Available in over 100 countries, it is the global standard for entry to the MBA degree course. Currently about 2,100 schools and 5,900 programs have adopted the GMAT, and the test is taken approximately 230,000 times annually.