The Domain of the Function f(x) for GMAT: A Complete Guide When you first start learning about functions in mathematics, you’ll often hear about a concept called the domain. It’s one of those foundational ideas that pops up repeatedly, whether you’re in high school algebra or studying advanced calculus. But what does it really mean … 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
GRE vs. GMAT: Which Test Is Right for Business School Applicants? Note: this is an experiment wherein I let my friend Chet G. Peadey, a generative AI, write a GMAT article. Let’s see how Chet does with respect to writing and data. I’ll put my comments in italics. –Rowan When preparing for business school, one … Read More
If a club has 12 members, what is the ratio of the number of different possible 6-member committees that can be formed to the number of different possible 5-member committees that can be formed? Congratulations! If you have memorized the Combination formula and desperately want to use it but are beginning to realize that (naturally) … Read More
How many 3-letter codes can be formed by choosing, without replacement, 3 letters from the word PEPPER? A) 6 B) 18 C) 19 D) 27 E) 30 Yet again we’re faced with a GMAT combinatorics question that doesn’t have anything to do with true permutations or combinations. That means you won’t be able to apply … Read More
If b is a positive integer and b^4 is divisible by 81 GMAT If b is a positive integer and b^4 is divisible by 81, which of the following could be the remainder when b is divided by 9? This is an interesting new question type that has appeared since the Focus questions have been … Read More
If a club has 12 members, what is the ratio GMAT Hey folks, here’s the actual question text: If a club has 12 members, what is the ratio of the number of different possible 6-member committees that can be formed to the number of different possible 5-member committees that can be formed? a) 7 to … 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