Solving GMAT Factorials
GMAT problem solving questions that contain the words “How many ways…?” may land you in a situation where you have to deal with factorials. Of course, we have useful strategies for getting certain of these types of questions right without resorting to combinatorics. However, sometimes the fastest and easiest way to answer these questions is […]
GMAT Data Sufficiency – Tip of the Week
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GMAT Data Sufficiency Questions GMAT Tip of the Week for the week of October 17, 2011 This week’s GMAT tip* is to avoid trying to determine if/how the two statements in a GMAT data sufficiency question work together until absolutely necessary. Check out this video to see why, and what your best strategy is for […]
GMAT Tip of the Week – Week of 9/26/11
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GMAT Tip of the Week for the week of September 26, 2011 This week’s GMAT tip* has to do with problem solving questions involving geometry. Enjoy! * Each week, one of the GMAT experts at Dominate the GMAT shares a valuable GMAT test-taking tip, strategy, trick, or content item. These tips are designed to augment […]
Solving for “x” in GMAT Algebraic Equations
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I want to get back to the basics in this blog post. As you’ve probably noticed in your GMAT prep, a lot of times you have to do basic math in the context of solving more difficult or complex GMAT math problems. We spend a lot of time teaching you how to solve those more […]
GMAT Math – Inequalities with Two Variables
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Inequalities on GMAT problem solving questions are pretty straightforward. In their most basic form, you solve an inequality almost exactly like you solve an equation, remembering to reverse the inequality sign if you end up multiplying or dividing by a negative number. Nothing earth-shattering there. But what about more difficult GMAT inequalities involving two variables? […]
GMAT Mixture Problems (Algebraic Solution)
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Mixture problems (dry or chemical) are a common type of word problem tested on the GMAT. They all work essentially the same way and are relatively easy once you know what you’re supposed to do. In my video lesson “Problem Solving — Common GMAT Word Problems,” I teach a non-traditional strategy for solving mixture problems […]
The Power of Common Sense
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In 1776, Thomas Paine wrote Common Sense, which became the moral and intellectual touchstone for the American colonists struggling for independence from England. What does this have to do with the GMAT? Nothing politically, of course. But the concept of using common sense to eliminate clearly wrong answers is a remarkably powerful concept on the […]
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