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Math In a certain collection of books there are 30 books in hard cover that contain more than 100 pages. If 15 percent of the books that contain more than…
Posts published by “Miranda Menestrina”
Math How many odd three-digit integers greater than 800 are there such that all their digits are different? A. 40 B. 60 C. 72 D. 81 E. 104 Question Discussion…
Math If equation encloses a certain region on the coordinate plane, what is the area of this region? A. 20 B. 50 C. 100 D. 200 E. 400 Question Discussion…
Math The ratio of the number of employees of three companies X, Y and Z is 3:4:8, respectively. Is the average age of all employees in these companies less than…
Math Two sets are defined as follows: If a number is taken from set at random and another number is taken from set at random, what is the probability that…
Math Jack can complete the task in 8 hours. Tom can complete the same task in 12 hours. If Jack works on the task alone for 4 hours and then…
Math (PS) If , then the sum of all possible solutions for is: A. B. C. D. E. Question Discussion & Explanation Correct Answer - D - (click and drag…
Math (DS) Between 12:24 and 14:36 the hour hand of the clock turns by A. 60 degrees B. 66 degrees C. 72 degrees D. 74 degrees E. 76 degrees Question…
Math (PS) 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 (PS) A draining pipe can empty a pool in 4 hours. On a rainy day, when the pool is full, the draining pipe is opened and the pool is…