Data Sufficiency . At a Glance HERE YOU'LL FIND a sample GMAT Data Sufficiency question along with a QuickTip. Your ability to understand arithmetic, algebra, and geometry concepts, and your ability to reason logically about quantitative problems. Here are the directions for GMAT Data Sufficiency. You have to decide whether the data given in the statements are sufficient for answering the question.
All numbers used are real numbers. .
Lines shown as straight can be assumed to be straight and lines that appear jagged can also be assumed to be straight. . You may assume that positions of points, angles, regions, etc., exist in the order shown and that angle measures are greater than zero. . All figures lie in a plane unless otherwise indicated. . If the data sufficiency problem asks you for the value of a quantity the data given in the statements are sufficient only when it is possible to determine exactly one numerical value for the quantity. . To review these directions for subsequent questions of this type, click on HELP. .