This is the Advice section.
How to Detect Baloney in GMAT Critical Reasoning When tackling Critical Reasoning questions on the GMAT, many test-takers approach them like puzzles—but famed astronomer Carl Sagan would argue they’re more like scientific claims. To get them right, you don’t just need verbal skills—you need a baloney detection kit. Sagan’s philosophy of scientific skepticism, distilled in … Read More
If x<8/5, which of the following could be greater than 1? That is, If , which of the following could be greater than 1? I. 60 percent of x II. 0.125 times 2x III. 1/x percent of 16x A. None B. I only C. II only D. III only E. I and III This type … Read More
If 5 integers are to be selected at random and without replacement from the list consisting of the 20 integers from 1 to 20, inclusive, what is the probability that 2 of the 5 selected integers will be 10 and 20 ? A. 2/5 B. 1/4 C. 1/10 D. 1/19 E. 1/60 OK, I’ll be … Read More
Does the GMAT Repeat Questions? Understanding the Test, Its Content, and How to Prepare Does the GMAT repeat questions? It’s natural to wonder. After all, if you could spot familiar questions during the exam, you might save time and improve accuracy. But the reality of how the GMAT works is more complex… In this article … Read More
Five Reasons Using a Calculator Is a Waste of Time on the GMAT or GRE We are taught since grade school that there’s no point to mental math when a machine can do calculations faster and more accurately than our brains. That might be true for the puny brains of your math teachers, but the … Read More
On a 12-hour analog clock, the hour hand moves GMAT Here’s the actual question text: On a 12-hour analog clock, the hour hand moves at a constant rate of 1 revolution every 12 hours, and the minute hand moves at a constant rate of 1 revolution every hour. The hands are perpendicular at 3:00 in … Read More
The distance between Town R and Town S is 209 miles… Here is the full question text: The distance between Town R and Town S is 209 miles. At noon yesterday, a motorist started from Town R and drove to Town S at a constant speed of 40 miles per hour, and another motorist started … Read More
The table gives three factors to be considered when choosing an Internet service provider GMAT EA The table gives three factors to be considered when choosing an Internet service provider and the percent of the 1,200 respondents to a survey who cited that factor as important. If 30 percent of the respondents cited both “user-friendly” … Read More
Chapter 11: GMAT Triangles All the basic stuff for triangles is probably going to be fairly obvious. First, of course, a triangle is a three-sided object. Second is that all of the angles of a triangle add to 180 degrees. Third is that the angle opposite any side of the triangle is proportional to that … Read More
The Ultimate Guide to GMAT Geometry, Part III: Trapezoids, Rectangles, and Squares Chapter 8: Trapezoids (Trapeziums (Trapeziae?)) in GMAT Geometry If you were paying attention to the footnotes, then you’d recognize this as the extra credit answer. In essence, a trapezoid is sort of a dodgy parallelogram, where only two of the opposite sides got … Read More