Welcome back to our series on GMAT quant rate problems. In the last article, we learned about the usefulness of “machine hours” for solving problems featuring more than two or three machines. This article will prepare you for questions that involve rates of...
Welcome back to our series on GMAT quant rates problems. This article will build upon the last and prepare you to easily solve combined work problems. To begin, let’s review the standard formula we learned last time: (1 / c) = (1 / a) + (1 / b) where c is the combined...
Welcome back to our series on number properties. In the last article, we learned about place-value problems. This article will cover the related topic of switching digits in two-digit integers. Here are some examples of what that means: Place-value problems 75...
Welcome back to our series on number properties. Last time we got familiar with prime factors as the substance of divisibility. In this article, we will extend this understanding by highlighting logical rules that sometimes come into play on GMAT number properties...
As everything is shifted online due to the recent global events, students have had to find ways to prepare for the online GMAT exam from the comfort of their own homes. The good news is that they no longer need to sit down and read books and guides to excel at the...
