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 set is 0 OA and Explanation Verbal (CR) A study attempting to link fertility with increased sexual...

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 are one-element sets 2. Neither set nor set contains negative...

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 is prime then (A) (B) (C) (D) (E) 2 OA and Explanation Verbal...

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 of the rectangle is 3:4 2. The difference between the lengths of sides of the rectangle is smaller...

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 the rectangle is 4 inches longer than its shorter side OA and Explanation Verbal (SC) Some parents have a very difficult...

Math (DS) Is ? 1. 2. OA and Explanation Verbal (CR) In 1986, the city of Los Diablos had 20 days on which air pollution reached unhealthful amounts and a smog alert was put into effect. In early 1987, new air pollution control measures were enacted, but the city...

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 the United States, vacationers account for more than half of all visitors to what...

Math (DS) Vertices of a triangle have coordinates , and . Is the area of the triangle bigger than 15? 1. 2. The triangle is right OA and Explanation Verbal (SC) Four generations of Americans have developed the habit of reading daily newspapers due to the comic strips being...

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 a marble of each color is among the extracted? (A) (B) (C) (D) (E) OA and Explanation Verbal...

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 between any two different elements of set is 2 ...