If you need to know it, it's in this book! Cracking the
GMAT, 2012 Edition includes everything you need to know to
master the Math, Verbal, and Analytical Writing Assessment sections
of exam. It includes:
• 2 full-length practice exams with answers
• A thorough review of all GMAT topics,
including data sufficiency, arithmetic, algebra, geometry, sentence
correction, reading comprehension,... more...