Sequence questions come up fairly regularly on the GMAT quantitative section. One of the biggest problems students report on these questions is that they can’t determine what the terms in sequence should actually be. As such, the first important thing to determine is the value of the first few elements of the sequence. Without this information, the question seems much more abstract and difficult to follow.
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Do you “multitask”? Probably you do. A survey showed that “the top 25 percent of Stanford students use four or more media at one time whenever they’re using any media. So when they’re writing a paper, they’re also Facebooking, listening to music, texting, Twittering, et cetera. And that’s something that just couldn’t happen in previous generations even if we wanted it to.”
In the last three weeks, we discussed a couple of strategies we can use to solve max-min questions: ‘Establishing Base Case’ and ‘Focus on Extremes’. Now try to use those to solve this question:
Question: A carpenter has to build 71 wooden boxes in one week. He can build as many per day as he wants but he has decided that the number of boxes he builds on any one day should be within 4 off the number he builds on any other day.
(A) What is the least number of boxes that he could have build on Saturday?
(B) What is the greatest number of boxes that he could have build on Saturday?
The crisis has largely been averted. As we approach Sunday’s Super Bowl, our collective eyes are no longer intently watching the thermometer in East Rutherford wondering how a polar vortex might affect the most American of all holidays, Super Bowl Sunday. We can now get back to the number we all REALLY care about:
Properly identifying incorrect modifier constructions, which are common errors in Sentence Correction, is a key component in achieving a high score on the GMAT. Knowing that modifier errors are among the most common errors seen on the GMAT, the astute student carefully studies the rules of correctly using modifiers. These grammatical constructions, among the most difficult to spot at a glance, confuse students and frustrate test takers who haven’t adequately prepared for the exam.
There are a number of criteria by which you can rank MBA programs: Average starting salary after graduation, average undergrad GPA of incoming students, acceptance rate, student satisfaction, and academic reputation among peer schools are all measures that publications use to try to sort the schools and create a definitive ranking.
By now you’ve seen the interview heard round the world – Richard Sherman’s immediate post-game interview with Erin Andrews – and all the fallout from it: Twitter hysteria, discussions about what that Twitter hysteria says about culture, little kid parodies, and everything else. And regardless of what you think about Richard Sherman, if you’re reading a blog post about MBA admissions you want to be Richard Sherman:
Certain skills help make the math portion of the GMAT much easier. For example, being at ease with multiplication and factoring can help you on all kinds of questions that aren’t even about multiples or factors. In fact, questions about one and only one topic are few and far between. A GMAT question will never ask you what 8 x 7 is explicitly, but it could easily ask you the area of a triangle with a base of 16 and a height of 7. (Recall that the formula for the area of a triangle is ½ Base x Height).
Continuing our discussion on maximizing/minimizing strategies, let’s look at another question today. Today we discuss the strategy of establishing a base case, a strategy which often comes in handy in DS questions. The base case gives us a starting point and direction to our thoughts. Otherwise, with the number of possible cases in any given scenario, we may find our mind wandering from one direction to another without reaching any conclusions. That is a huge waste of time, a precious commodity.
Twenty years later, the figure skater you’d never have called “trendy” was trending last night. As ESPN aired its 30 For 30 special on Tonya Harding and Nancy Kerrigan, the biggest pre-OJ story of 1994 became the hottest topic of early 2014. Heading into the 1994 Olympics, both Nancy and Tonya were Olympic veterans, having placed 3rd and 4th, respectively, at the 1992 Games. With 1992 gold medalist Kristi Yamaguchi out of the way, the table was set for a Nancy vs. Tonya showdown and both were up to the task, Tonya having been 1991 U.S. Champion and Nancy having won that title in 1993.
One of the Critical Reasoning questions that students struggle with the most is the Roles of Boldface questions. This may be because they’re scarce (like diamonds), and therefore you aren’t likely to practice them as much as other question types. Or it may be because they ask you to differentiate among multiple definitions that all start to sound the same after a while. Is the first a position or is it an opinion, and is there any difference between those two? (Hint: there isn’t).
One thing that we love to do around Veritas Prep HQ is declare our opinions. Whether it’s about football, health food, traffic etiquette, dancing, or stand-up comedy, everyone here has an opinion. Even more fun is when we stick our necks out and make some predictions about where we see test preparation and admissions going in the coming year. We’re often right, and we’re always entertaining.
We haven’t dealt with maximizing/minimizing strategies in our QWQW series yet (except in sets). The reason for this is that the strategy to be used varies from question to question. What works in one question may not work in another. You might have to think up on what to do in a question from scratch and you have only 2 mins to do it in. The saving grace is that once you know what you have to do, the actual work involved to arrive at the answer is very little.
-You can’t win them all – in fact, with Item Response Theory scoring much like with democracy you can achieve a resounding “victory” with even 55-60% success in many cases.
On data sufficiency problems, it’s easy to feel overwhelmed by the abstract possibilities presented by the question. Since you don’t actually have to calculate an exact solution, frequently you are faced with problems that would be too tedious to solve without a calculator. However, just because you don’t have to actually solve them, doesn’t mean it isn’t comforting to do so when faced with abstract problems (just add a little concrete).
And just like that, a whole year has flown by again! Last January, we posted four predictions for the world of test prep and admissions. As fun as it is to make predictions, and it’s even more rewarding to look back at some point and see how we did. (“Oh my… We predicted THAT would happen?”) If you predict enough things, some of them will eventually happen, right?
Last week we discussed the properties of terminating decimals. We also discussed that non-terminating but repeating decimals are rational numbers.
It’s a new year, which is often a good time for a new mindset. And if you’ve already decided that 2014 is the year for you to get serious about graduate school, the “hard work pays off” mindset is one you’ve already adopted. So before the year gets too old and habits get too hard to change, try adding one more new outlook to your study regimen (and your life) this year:
It has been said that everything is relative. Without getting too deep into the theory put forth by my friend Al(bert Einstein), your relative position and situation shapes your perception of things. A very common example of this is when students ask me “what difficulty level is this question?” I may find a question difficult and proclaim it’s a 700 level question. Another question seems more straightforward so I deem it a 500 level question. Granted, I have some credibility vis-a-vis GMAT difficulty level, but my opinion will be tainted by my relative strengths. I tend to consider arithmetic problems as simple and geometry problems as difficult primarily because of my personal preferences and abilities.
There goes another year. Faster than you can say “99th-percentile instructors,” 2013 has come and gone, leaving in its wake a trail of excellent Veritas Prep blog articles. As we start to wrap up the year here at Veritas Prep HQ, wrap our Secret Santa gifts, and prepare to break in the new hires at our annual holiday party, we thought this would be a good time to share some of our biggest news and most popular articles from the past year.
Last week, we discussed the basics of terminating decimals. Let me review the important points here:
- To figure out whether the fraction is terminating, bring it down to its lowest form.
So you have a few more days to commit to your New Year’s Resolution, and if you’re like most people you have something like 35 days until you break it. Resolutions don’t often stick, but if your New Year’s Resolution is to apply to business school in 2014, and if as part of that resolution you’re planning to get a high GMAT score, you’re in luck:
When preparing for the GMAT, you may notice that studying for one subject makes you better in other disciplines as well. For example, practicing your algebra tends to make you better at algebra, arithmetic tends to make you faster at picking numbers and the entire quant section helps you significantly in integrated reasoning. This is due to the fact that many subjects overlap and have common elements. More formally, you can say that the GMAT is an exam with a lot of synergy.
In the first part of this article we discussed recent research indicating that exercise is the only way to create new brain cells, protect existing brain cells, and form new neural networks. If that list is not enough, aerobic exercise is also an important component of healthy emotions and possibly even control of test anxiety.
We know the basics of decimals and rational numbers.
- Decimals can be rational or irrational.
- Decimals which terminate and those which are non-terminating but repeating are rational. They can be written in the form a/b.
- Decimals which are non-terminating and non-repeating are irrational such as √2, √3 etc.
One of the things that makes Reading Comprehension difficult is the inclusion of so many words that you either don’t know or don’t spend much time thinking about. Triglyceride, germination, privatization, immunological.
But by the same token, certain words – those that you should think about regularly if you don’t already – can make your job exponentially easier. Consider, for example, these sentence fragments from the beginnings of official GMAT passages:
The most common complaint I hear from students about Reading Comprehension is that the text is mind-numbingly boring. This is due to two common factors. First, the texts are frequently mind-numbingly boring! Second, even if they’re somewhat interesting, the fact that you’ve been staring at a computer screen for about three straight hours (not counting the two eight-minute breaks) means you’re likely not completely focused on the task at hand. In fact, many a student has confided in me that by this part of the test they were already dreaming of lunch at McDonalds (okay this may have just been my personal experience).
This is hard to confess publicly but I must because it is a prime example of how GMAT takes advantage of our weaknesses – A couple of days back, I answered a 650 level question of weighted averages incorrectly. Those of you who have been following my blog would understand that it was an unpleasant surprise – to say the least. I know my weighted averages quite well, thank you! For this comedown, I blame the treachery of GMAT because it knows how to get you when you become too complacent. The takeaway here is – no matter how easy and conventional the question seems, you MUST read it carefully.
The axiom has been tweaked and twisted so often that perhaps no one knows the exact term, but we all know the definition.
The definition of insanity is…
The definition of stupidity is…
(WAIT! Google confirms that it’s insanity, but you’ve probably heard it as any number of terms)
This past Friday, key people from the Graduate Management Admission Council (GMAC) and representatives from various test prep companies came together in Los Angeles for the biannual GMAT Summit. The summit, which first ran in 2005, was created to improve transparency in the GMAT and to break down some of the most persistent myths around the exam. GMAC deserves a lot of credit for having a rather open-minded approach about test prep companies (We’re not steroids dealers, after all!), and the GMAT Summit is a great example of this approach.
One of the most common misconceptions on the GMAT is that you have to solve every question in about 2 minutes. This of course stems from the fact that you have 75 minutes to answer 37 quantitative questions (or ~2.03 minutes per question) and 75 minutes to answer 41 verbal questions (or ~1.83 minutes per question). Both figures can be approximated to roughly two minutes per question on average; however, this does not mean that every question will take you 2 minutes to solve.
You may not know it yet, but there are simple things that you can do right now, that will help you to not only score higher on the GMAT but also succeed in business school and beyond. Getting exercise should be the first change on your list!
The New York Times has written extensively recently on the connection between exercise and brain health. It turns out that iPads, video games, smart phones, computers, even crossword puzzles…do not make lasting changes in your brain structure; only exercise does. So if you want to be better at answering the questions on “Jeopardy!” you should turn off the TV and go for a brisk walk.
While eagerly awaiting the kick off of season 3 of BBC’s Sherlock, let’s put our time to good use. Though we have already spent a lot of it speculating over what really happened to Sherlock (HOW did he come back?!), perhaps we can take a leaf out of his book and learn to notice little things in whatever is leftover. There is a good reason to do that – there are little clues in some questions that the test maker unwittingly leaves to bring clarity to the question. If we understand those clues, a seemingly mysterious problem could be easily unraveled. Let us show you with an example.
While it’s certainly not the score you care about most, the Analytical Writing Assessment can bring with it some stress and even despair. Why? For one, it comes first on the test, and for two it’s the only section that isn’t multiple choice. The answer isn’t already in front of you, but rather you have to create it yourself. And like this blog post (author’s note – I’m attending a conference with the folks from the Graduate Management Admissions Council and have a dinner in an hour with some of our partners in the industry before the conference, so I have 30 minutes to write something intelligible here), the AWA can lead directly to that panic you’ve likely felt on blue book exams and the night before book reports: writer’s block.
On the GMAT, there is often a fine line between a statement possibly being true and a statement always being true. Inference questions ask about which statement must be true, and often provide many statements that each seem to be correct. However, must be true is a high standard to achieve, and many statements fall short of this benchmark despite being perfectly reasonable assumptions on their own.
When faced with an unusual quadratic equation, some people waste a lot of time while trying to ‘split the middle term’. The common refrain is ‘I am just not good at it.’ Actually it has little to do with intuition and a lot to do with understanding how numbers work. If I am looking at a quadratic equation and am unable to find the required factors, I will go back to check my quadratic to see if it is correct rather than try to use the esoteric quadratic formula.
Do some of your best ideas come while you’re driving, running, taking a shower or just about to fall asleep? Have you ever spent what felt like an eternity reading a solution over and over again to no avail, only to revisit that problem a few days later and know how to do it almost so intuitively that just feels easy?
Here at Veritas Prep, we have a long list of reasons to be thankful this year! From our students, to our incredible teachers and admissions consultants, it’s truly been an amazing year.
We are excited to announce that starting today through Monday, December 2nd we are making available our biggest discounts of the year on all of our services (discounts on MBA admissions consulting services will be available through Wednesday, December 4)! Whether you are trying to hit Round 2 business school deadlines or are planning on taking the SAT next year, make sure to take a look at our discounts and register before these prices are no longer available.
In Data Sufficiency, the GMAT is asking you to determine how much information is required to make a decision. If the information provided leads you a definite yes, then you have sufficient data to take decisive action. Similarly, if there is enough information to lead to a definite no, then you can also take decisive action. The only time trouble arises is when the information could lead to a yes or to a no; this situation leaves you in a position where you may have to guess (I’ll take Door #1, Bob).