GMAT Math Articles

On the GMAT, you’ll sometimes encounter tough mathematical expressions. Consider the following Data Sufficiency question: What is the value of ? Statement 1: Statement 2: Let’s begin with statement 1: Some … Read More

Although they appear less frequently than questions involving algebra or number properties, permutation and combination questions on the GMAT can be tricky for even the most savvy of test takers. As complicated as these … Read More

A student writes, Sometimes the answer explanation suggests that I clear fractions by multiplying an entire equation by a common denominator. Sometimes the answer explanation suggests that I manipulate just one side of … Read More

Help! I understand all the working parts of divisibility and prime factor questions—how to factor, how to work with primes, etc.—but on my last practice exam, it took me so long to figure out what each question was … Read More

A student writes, Sometimes the answer explanation suggests that I clear fractions by multiplying an entire equation by a common denominator. Sometimes the answer explanation suggests that I manipulate just one side of … Read More

A student writes, Sometimes the answer explanation suggests that I clear fractions by multiplying an entire equation by a common denominator. Sometimes the answer explanation suggests that I manipulate just one side of … Read More

Ready to check your answers from yesterday’s Quick Quiz? Questions and Answers 1. Which of the following is equivalent to ? A) B) C) D) E) Answer: B 2. Which of the following is equivalent to ? A) B) C) … Read More

A student writes, Sometimes the answer explanation suggests that I clear fractions by multiplying an entire equation by a common denominator. Sometimes the answer explanation suggests that I manipulate just one side of … Read More

I am super excited to announce a new edition of our Advanced Quant Strategy Guide! We worked hard on this book all of last year (yes, it takes a long time make a book!) and we hope that you find it to be a valuable … Read More

Happy Monday! You surely know the drill already, but during the third phase of the GMAT Avengers initiative we are allocating two backtoback sessions to thoroughly challenge various test topics. This week, Rahul, Pei, … Read More

For many students studying for the GMAT, the dreaded Data Sufficiency questions can be a source of consternation. When you really think about it, though, the data sufficiency questions offer one advantage in that they … Read More

After reading the question stem of a data sufficiency question, you choose one statement, determine if it’s sufficient to answer the question asked, and then do the same for the other statement. Only after evaluating … Read More

Happy Monday! After two successful Sentence Correction sessions in which we challenged you with some difficult Pronoun problems—see part 1 and part 2—the Avengers are now inviting you to test your Quant skills. Join … Read More

Today, we’re going to review the last two questions from the Tricky Data Sufficiency Questions practice post. If you’re just tuning in, give the questions a shot, check your answers here, and then review the … Read More