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Math (DS) Set consists of a certain number of even integers divisible by 3. Is standard deviation of positive? 1. All elements of set are positive 2. The range of…
Posts published by “dzyubam”
Math (DS) If sets and are united into a single set, will the mean of this set be smaller than the sum of means of sets and ? 1. and…
Math (PS) If is a positive integer, is defined as the number of positive integers which are less than and do not have common factor with other than 1. If…
Math (DS) A rectangle is inscribed in a circle of radius 5. Is the area of the rectangle bigger than 48 ? 1. The ratio of the lengths of sides…
Math (DS) Is the perimeter of a rectangle greater than 8 inches? 1. The diagonal of the rectangle is twice as long as its shorter side 2. The diagonal of…
Math (DS) Is |X+1|
Math (DS) What is the mean of four consecutive even integers , , , ? is the smallest of the four integers. 1. 2. Question Discussion & Explanation Correct Answer…
February 2012 popularity index of Best GMAT Books as determined by GMAT Club members. (We measured how often our members referred to each of the books in their posts from…
Math (DS) Vertices of a triangle have coordinates , and . Is the area of the triangle bigger than 15? 1. A
Math (PS) A basket contains 3 blue marbles, 3 red marbles, and 3 yellow marbles. If 3 marbles are extracted from the basket at random, what is the probability that…