On the GMAT quantitative section, the exam is testing your logic and analytical skills using mathematics as a medium. The topics used include geometry, algebra and arithmetic, all concepts that have been covered in high school curriculums around the world. However, the emphasis is really on the logic more than the math. In short, the question is simply asking you to solve a given problem by any means at your disposal. As such, many questions can be solved without doing any math whatsoever.
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Let’s get back to strategies that will help us reach the coveted 51 in Quant. First, take a look at Part I and Part II of this blog series. Since the Quant section is not a Math test, you need conceptual understanding and then some ingenuity for the hard questions (since they look unique). Today we look at a Quant problem which is very easy if the method “strikes”. Else, it can be a little daunting. What we will do is look at a “brute force” method for times when the textbook method is not easily identifiable.
As our attention spans get shorter, the GMAT’s verbal section gets harder. Admit it – at some point in the verbal section of your latest practice test, and maybe earlier in that section than you’d like to admit, you just got bored, or at least lost in all the reading.
In today’s world of instant gratification and ubiquitous mobile phone usage, we are becoming used to things going fast. Multitasking has become the new norm, and it seems like no one takes the time to finish anything before jumping off to the next task. While this hectic pace may allow more tasks to be accomplished (although not necessarily well), it also makes it harder for any one task to be attentively completed. In short, it’s becoming harder to finish any one thought.
If you want to bring your “A Game” on the Quant section you need to be very comfortable with Algebra.
There is one mathematical discipline that dominates the Quant section of the GMAT: Algebra. The majority of the math questions that you will see on test day involve algebra.
Many questions involve pure algebra, such as expressions and equations involving variables, roots, and exponents. Another large group of questions is word problems, most of which are best addressed using algebraic equations. Geometry is another significant subject on the GMAT; and geometry is simply a delivery mechanism for algebra. Even things like ratios can often best be addressed by using equations with “x” as the multiplier.
We will continue our Quant 48 to 51 journey in the coming weeks but today, we need to discuss an important distinction between assumptions and inferences. Most of you will be able to explain the difference between an assumption and an inference but some questions will still surprise you. After all, both assumptions and inferences deal with the same elements in the argument. The way they are worded makes all the difference.
In life, it’s important to have a hobby or pastime that you find interesting. Sometimes, when the daily grind of work, school, family, social responsibilities, (updating Facebook) and preparing for the GMAT just seems like too much to handle, it’s good to take a step back. Diving into a hobby helps take your mind off things by pausing everything else and concentrating on something personal and somewhat intimate to you. One of my favorite diversions is watching movies and immersing myself in the fictional world created on screen. Surprisingly, this same distraction can be applicable to GMAT studying as well.
I recently received the following question from a student. “I often get into trouble with ambiguous pronouns. If it is not clear what “they” or “it” refers to I eliminate the answer choice. I like to do this because it seems easy, but I keep getting burned using this technique. So my question is, if it is not clear what a pronoun refers to is that answer choice wrong?”
If you’re taking the GMAT with the intent of applying to a top-tier business school, there’s a relatively fair chance that you’ll end up having/wanting to retake the GMAT. Which may sound horrible, but it’s true – in fact, several top schools note that their average students take the test more than twice, so if you see a frustrating score pop up during your first, second, or even third attempt don’t let yourself get too down. Rest assured that:
One common complaint that people have when finishing the GMAT is that they are mentally exhausted. Indeed the exam is a marathon that tests your overall endurance, but also your time management skills. You have about two minutes per question in the math section, and slightly less than that on the verbal part. Since timing is such an integral part of the exam, it’s important not to lose too much time on any specific question type on the exam. It’s perfectly natural to be more at ease with certain question types and thus process them faster than others, but you don’t want to have entire categories of questions you’re trying to avoid (or at least, not too many of them).
This month, the Graduate Management Admissions Council began offering new versions of the popular Official Guide for GMAT Review series, now labeling by year (OG 2015) as opposed to edition (the last was the 13th). For the nuts and bolts we’ll let you read the official press release or visit the official website, but here’s what you should know about the new resources:
People often ask – how do we go from 48 to 51 in Quant? This question is very hard to answer since we don’t have a step by step plan – do theory from here – do questions from there – take a test from here – read posts from there etc. Today and in the next few weeks, we will discuss how to go from 48 to 51 in Quant.
GMAT Tip of the Week: LeBron James Says Don't Be Cavalier About Your Initial Data Sufficiency Decision
It’s all anyone can talk about today – LeBron James has decided to reverse “The Decision” and return home to play for Cleveland. In doing so he forced many people to change their minds.
Let’s take a look at some of those people:
-LeBron himself, who once decided to leave and now comes home as the prodigal son
-Cavaliers owner Dan Gilbert, who once wrote a scathing letter about James the week he left the Cavs for South Beach
-Cavaliers fans, who once burned LeBron’s jersey and rallied against him
-Dwayne Wade, who just last week opted out of a $40 million contract to restructure his deal to create space to attract more players to his and LeBron’s Heat team
One common complaint I hear from GMAT students is: “I can get the right answer but it takes me too much time.” Many people preparing for the GMAT feel this way at one point or another during their preparation. While this complaint has some merit, it can usually be paraphrased as “I’m approaching the problem with little to no strategy.” Relying on brute force to get the right answer is rarely the best approach. The old adage states that a million monkeys writing on a million typewriters will eventually produce the greatest novel of all time (It was the best of times, it was the blurst of times…).
In today’s post, we will give you a question with two solutions and two different answers. You have to find out the correct answer and explain why the other is wrong. But before we do that, let’s give you some background.
Given an n sided polygon, how many diagonals will it have?
An n sided polygon has n vertices. If you join every distinct pair of vertices you will get nC2 lines. These nC2 lines account for the n sides of the polygon as well as for the diagonals.
On the GMAT, you will be asked to answer multiple questions in a relatively short period of time. One of the main difficulties test takers have with the GMAT is that they run out of time before finishing all the questions. For the quant section, there are 37 questions to solve in 75 minutes, which gives an average of just over two minutes per question. Since you don’t want to finish at the 74:59 mark (unless you’re MacGyver), you can figure two minutes per question as a good target. The good news is that most questions can easily be solved within a two minute timeframe. Unfortunately, many test takers spend three or four minutes on questions because they do not understand what they are trying to solve.
It’s not a stretch to say that the more prestigious the business school you attend, the higher your starting post-graduation salary will tend to be. The more prestigious your MBA program is, the more options you will tend to have in the job hunt, and the higher potential employers will be willing to go to hire you. The more options you have and the more marketable you are, the more you’re probably going to make when you come right out of business school.
Even after working extensively on absolute value questions, sometimes students come up with “why?” i.e. why do we have to take positive and negative values? Why do we have to consider ranges etc. They know the process but they do not understand the reason they need to follow the process. So here today, in this post, we will try to explain the reason.
So you’ve taken a practice test and want to know how to use it to improve. You’re not alone, but actually you’re a step ahead of much of the competition! Read the various GMAT forums and you’ll see a lot of data dumps:
On my most recent CATs I scored 640, 610, 630, 580, and 620. What must I do to score 750+ for H/S/W???? Please Help!
In an announcement that should be quite welcome for all GMAT examinees, the Graduate Management Admissions Council has changed a policy. Now:
GMAT examinees will be able to preview their unofficial scores before deciding whether to report or cancel them.
Studying for GMAT sentence correction questions can seem like a primer on grammatical rules. This is because any given phrase could have a pronoun issue, or a verb agreement issue, or even a logical meaning issue. Most GMAT preparation involves at least some amount of time on the specific issues that are frequently tested on the GMAT. There is, however, one important rule that must always be adhered to and that cannot be easily pigeonholed. This rule should cross your mind on every single sentence correction problem you may see, and is often overlooked when speeding through practice questions. Quite simply: the underlined portion of the phrase must work seamlessly with the rest of the sentence.
By this time tomorrow, the results will be in: will the United States have survived the Group of Death with Germany, Portugal, and Ghana? Or will Portugal’s late equalizer from Sunday have yanked the dream of Elimination play from the Yankees? A lot is riding on the concurrent USA vs. Germany and Portugal vs. Ghana matches tomorrow as all four teams have the potential to advance to the knockout stage of this year’s World Cup.
We know that ‘Easy C’ is a common trap of DS questions – have you wondered whether there could be trap called ‘Easy A/B’ such that the answer would actually be (C)? Such questions also exist! The point is that whenever you feel that the question was way too simple, you might want to take a step back and review. GMAT will try every trick in the trade to delineate you. Let us show you a question which looks like an easy (A) but isn’t:
Just because successful people share certain habits does not mean that those habits leads to success. Spend some time teaching successful adults – the pre-MBA crowd with great academic resumes and good work experience, for example – and you’ll see that they often study ineffectively. Watch them complete homework problems and you’ll find the same. What are they doing?
A common mantra at Veritas Prep is that the GMAT is a test of how you think, not of what you know. This shouldn’t be interpreted to mean that you can go into the exam without knowing anything and expect to get a good score. Rather, it means that how you apply concepts is crucial in this exam. You need to have a strong base, like the foundation of a house, but the difficulty is in using the information you have to solve the problem in front of you.
We would like to discuss a bit about conjunctions today – just whatever is relevant for GMAT. We will start by defining the kinds of conjunctions, then move on to the different ways in which they are used, and finally, we will see how they can be tested in a question.
A Conjunction is a word that connects or joins together words, phrases, clauses, or sentences. There are two kinds of conjunctions:
If you’re like…probably most human beings this week, you’re at least aware and likely excited for the 2014 World Cup, which began this week in Brazil. As this article is being written, in fact, the 2010 finalists, Spain and the Netherlands, are doing battle in the event’s third game (congratulations to Brazil and Mexico, winners of the first two). And if you’re streaming this game or others at work or if you’ve taken days off to enjoy, you can learn quite a bit from what’s going on in these early group-stage games – lessons that can help you better understand the GMAT scoring system and better plan your test-day and study strategies.
The question format least familiar to most prospective GMAT students is unquestionably Data Sufficiency. As a test exclusive (it has a no trade clause) question type, it is unlikely that you have come across such a question without having at least glanced at a GMAT prep book. However the format is completely logical. The question is asking when do you have sufficient data to answer a question, be it “always yes”, “always no” or “specific value x”. The enemy is uncertainty; any definitive answer will suffice to answer the question and move on to the next hurdle.
Some of the GMAT’s hardest Problem Solving problems can be made exponentially easier by keeping a famous Jay-Z lyric in the back of your mind. When you hear the phrase:
If you’re having girl problems, I feel bad for you son?
What immediately springs to mind?
I got 99 problems but a b**** ain’t one.
Many students who take the GMAT come from backgrounds that stressed mathematics. A significant percentage of GMAT test takers come from engineering backgrounds or other fields that require strong analytical skills. However, these students often find that the GMAT quantitative section is challenging for them. This is because the GMAT tests math in a way that is unfamiliar to these students, taking them out of their comfort zones and requiring them to solve questions in new and unfamiliar ways (most glaringly, without a calculator).
The famous rounding song by Joe Crone is pretty much all you need to solve the trickiest of rounding questions on GMAT:
You just slip to the side, and you look for a five.
Well if the number that you see is a five or more,
You gotta round up now, that’s for sure.
While summer hasn’t officially started with the solstice coming in a few weeks, this post-Memorial-Day short week and a final farewell to winter weather has started the summer season in earnest for most Northern Hemispherians. And thus beginneth the season of sentences like:
It’s not only the heat but also the humidity.
On GMAT Data Sufficiency questions, it’s important to note that you don’t have to do any calculations to get the right answer. In theory, it’s entirely possible to simply look at a problem and determine that the answer must be D (whilst eating your grey poupon). The question format simply asks you to confirm whether you have enough information to make a decision, not what that decision is or what any specific value is.
While discussing Permutations and Combinations many months back, we worked through several examples of arranging people in seats. Today we bring you an interesting question based on those concepts. It brings to the fore the tricky nature of both Data Sufficiency and Combinatorics – so much so that when the two get together, it is unlimited fun!
Over the course of your GMAT exam, you’ll read thousands of words. Each Reading Comp passage, for example, will have ~300 of them; each Sentence Correction prompt will have ~40. And while you won’t spend much time reading the words in the Data Sufficiency answer choices, having long since internalized what each letter means, you’ll spend plenty of time poring over keywords in the question stem. You’ll need to process tons of words as you take the GMAT, but on most questions one word will make all the difference:
Sentence correction questions are among the least understood questions on the GMAT. Many native English speakers feel they can get by using their ears on sentence correction. However, the questions chosen on the GMAT generally have specific logical elements that must be evaluated in order to get to the right answer. Simply put, the grammar matters, but it’s more about the meaning than about the grammar.
We are assuming you know the terms median, angle bisector and altitude but still, just to be sure, we will start our discussion today by defining them:
Median – A line segment joining a vertex of a triangle with the mid-point of the opposite side.
Angle Bisector – A line segment joining a vertex of a triangle with the opposite side such that the angle at the vertex is split into two equal parts.
On nearly every GMAT, you’ll see at least one of the “Min/Max” variety of word problems, a category that’s difficult for even the brightest quant minds largely for one major reason: these aren’t your typical word problems, and they don’t lend themselves very well to algebra. They tend to be every bit as “situational” as “mathematical” and in fact are labeled “scenario-driven Min/Max problems” in the Veritas Prep Word Problems lesson. Why? Because they’re almost entirely driven by the situation, including: