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GMAT Combinatorics: Ultimate Guide to GMAT Permutations and Combinations
GMAT Combinatorics. This phrase has stricken fear in the hearts of many GMAT test takers. You never know when a challenging combination or permutation question will pop up three-quarters of the way through your GMAT exam to wreak havoc on your score. Combinatorics is...
Your Personal GMAT 3-Month Study Plan
Deciding when to begin your GMAT preparation is a critical step toward achieving your desired score. While it might seem simple, several factors must be considered, such as your current skill set, knowledge base, target score, and the time you can dedicate each week...
Executive Assessment Score: How Is It Calculated?
If you are planning on taking your Executive Assessment (EA), or have already taken it once, and need help understanding how your EA score is calculated and what that means for your admissions prospects, this article is for you. Knowing how the exam is evaluated can...
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[2023] GMAT Percentile Rankings and Score Chart
The GMAT exam is an important part of the admissions process for over 7,000 business programs worldwide. GMAT performance is widely regarded as one of the best predictors of not only high academic honors, but also long-term career success. Achieving an excellent GMAT...
GMAT Rate Problems: Algebraic Answers
Welcome back to our series on GMAT quant rate problems. In this final article, we’ll explore problems that have algebraic expressions as answer choices. You have a few options whenever you encounter one of these problems, but this article will focus on solving them by...
GMAT Rate Problems: Change of Speed Problems
Welcome back to our series on GMAT quant rate problems. In the last two articles, we saw how GMAT quant problems employ the concepts of average speed and instantaneous speed. This article will introduce methods for solving problems where the speed of a vehicle...
GMAT Rate Problems: Instantaneous Speed
Welcome back to our series on GMAT quant rate problems. In the last article, we learned about average speed and observed various ways that data sufficiency problems can try to “trick” test-takers with this concept. This article will contrast average speed against...
GMAT Rate Problems: Average Speed
Welcome back to our series on GMAT quant rate problems. This article and the next will introduce concepts related to average speed. Though average speed is a simple concept, there are many ways for GMAT quant problems to “trick” test-takers with average speed...
GMAT Rate Problems: Inequalities
Welcome back to our series on GMAT quant rate problems. The last article covered rate problems with geometry elements. In this article, we’ll see how rates are used in data sufficiency inequalities problems. Inequalities are a common form of data sufficiency problems,...
GMAT Rate Problems: Geometry
Welcome back to our series on GMAT quant rate problems. In the last article, we learned about problems involving fuel consumption rates. This article will address rates problems that incorporate geometry concepts. These are speed = distance/time problems where the...
GMAT Rate Problems: Rates of Consumption of Fuel
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...
GMAT Rate Problems: Multiple Machines
Welcome back to our series on GMAT quant rate problems. In the last article, we studied problems where two objects are moving, either in the same direction or in opposite directions. This article will return to machines and address problems that feature more than two...
GMAT Rate Problems: “Two Moving Objects”
Welcome back to our series on GMAT quant rate problems. The last two articles covered machines working together to complete a job. This article addresses problems that have two objects moving at given speeds instead of two machines working at given rates. Recall from...
GMAT Rate Problems: Master Methods for Combined Work Problems
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...
GMAT Rate Problems: Combined Work Problems
Welcome back to our series on rate problems. In the first article, we introduced the relationship between the variables of rate, work, and time - or speed, distance, and time. This article and the next will teach you how to approach combined work problems which...
GMAT Number Properties: Even and Odd Integers
Welcome back to our series on number properties. This final article in the series will introduce some properties of even and odd integers that appear very frequently on GMAT quant. It’s not an overstatement to say that you should be looking for properties of evens and...
GMAT Number Properties: Multiples and Consecutive Integers
Welcome back to our series on number properties. The last two articles introduced GMAT quant problems that revolve around place value in multi-digit integers. This article returns to the “divisibility and factors” core of number properties. But now we are looking at...
GMAT Number Properties: Switching Digits
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...
GMAT Number Properties: Place Value Problems
Welcome back to our series on number properties. This article will introduce GMAT quant problems that revolve around the relationships between the digits of multi-digit integers. This topic can be tricky because we all know how the base-10 system works, but this...
GMAT Number Properties: Least Common Multiple
Welcome back to our series on number properties. In the last article, we learned how to find the greatest common factor/divisor of a set of integers. This article will cover the related topic of the least common multiple. Least common multiple The least common...
GMAT Divisibility and Remainders: Day of the Week Problems
Welcome back to our series on number properties. In the last article, we introduced remainders. This time we will address my favorite use of remainders on GMAT quant: day of the week problems. Have you ever encountered a problem like this? Problems related to Days of...
GMAT Number Properties: Divisibility and Remainders
Welcome back to our series on number properties. In this article, we deal with the fallout of failed divisibility: remainders. Remainders exist whenever an integer is divided by another integer that is not one of its factors. When integer n is divided by integer x,...
GMAT Divisibility Rules
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...
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