Posts published by “dzyubam”

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…

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 $latex |X+1|

Math (DS) What is the mean of four consecutive even integers , , , ? is the smallest of the four integers. 1. 2. OA and Explanation Verbal (CR) In…

Math (DS) Vertices of a triangle have coordinates , and . Is the area of the triangle bigger than 15? 1. $latex 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…

Math (DS) Set consists of distinct numbers such that the difference between any two different elements of set is an integer. How many elements does set contain? 1. The difference…