Posts published by “Jeff”

Math If there are 78 people working at an office, how many of them are women older than 40? (1) There are twice as many men working at the office…

Math If is ? (1) (2) is a prime number and is NOT a prime number   Question Discussion & Explanation Correct Answer - B- (click and drag your mouse to…

Math If is a positive integer, what is the least possible value of ? (1) (2)   Question Discussion & Explanation Correct Answer - D - (click and drag your mouse to…

Math If 53 students are enrolled in both the CS103 (Algorithms and Data Structures) and the M101 (Mathematics for Computer Science) classes, how many of the CS103 students are not…

Math Machine A can do a certain job in 12 days working 2 full shifts while Machine B can do the same job in 15 days working 2 full shifts.…

Math The square of = ? A. B. C. D. E.   Question Discussion & Explanation Correct Answer - B - (click and drag your mouse to see the answer)…

Math Buster leaves the trailer at noon and walks towards the studio at a constant rate of B miles per hour. 20 minutes later, Charlie leaves the same studio and…

Math The population of a bacteria colony doubles every day. If it was started 9 days ago with 2 bacteria and each bacteria lives for 12 days, how large is…

Math If , what is the value of ? A. 101 B. 122 C. 157 D. 170 E. 197   Question Discussion & Explanation Correct Answer - D - (click and drag…

Math If and and , , , and are non-zero integers, which of the following is true? A. B. C. D. E. None of the above   Question Discussion &…