The post GMAT Probability Practice: Questions and Answers appeared first on Veritas Prep Blog.

]]>You may already know that there are certain formulas that can help solve GMAT probability questions, but there is more to these problems than teasing out the right answers. Take a look at some advice on how to tackle GMAT probability questions to calm your fears about the test:

**Probability Formulas**

As you work through GMAT probability practice questions, you will need to know a few formulas. One key formula to remember is that the probability equals the number of desired outcomes divided by the number of possible outcomes. Another formula deals with discrete events and probability – that formula is P(A and B) = P(A)*P(B). Figuring out the probability of an event not occurring is one minus the probability that the event will occur. Putting these formulas into practice is the most effective way to remember them.

**Is it Enough to Know the Basic Formulas for Probability?**

Some test-takers believe that once you know the formulas related to probability for GMAT questions, then you have the keys to success on this portion of the test. Unfortunately, that is not always the case. The creators of the GMAT are not just looking at your ability to plug numbers into formulas – you must understand what each question is asking and why you arrived at a particular answer. Successful business executives use reason and logic to arrive at the decisions they make. The creators of the GMAT want to see how good you are at using these same tools to solve problems.

**The Value of Practice Exams**

Taking a practice GMAT can help you determine your skill level when it comes to probability questions and problems on every other section of the test. Also, a practice exam gives you the chance to become accustomed to the amount of time you’ll have to finish the various sections of the test.

At Veritas Prep, we have one free GMAT practice test available to anyone who wants to get an idea of how prepared they are for the test. After you take the practice test, you will receive a score report and thorough performance analysis that lets you know how you fared on each section. Your performance analysis can prove to be one of the most valuable resources you have when starting to prepare for the GMAT. Follow-up practice tests can be just as valuable as the first one you take. These tests reveal your progress on probability problems and other skills on the GMAT. The results can guide you on how to adjust your study schedule to focus more time on the subjects that need it.

**Getting the Right Kind of Instruction**

When it comes to probability questions, GMAT creators have been known to set subtle traps for test-takers. In some cases, you may happen upon a question with an answer option that jumps out at you as the right choice. This could be a trap.

If you study for the GMAT with Veritas Prep, we can teach you how to spot and avoid those sorts of traps. Our talented instructors have not only taken the GMAT; they have mastered it. Each of our tutors received a score that placed them in the 99th percentile. Consequently, if you study with Veritas Prep, you’ll benefit from the experience and knowledge of tutors who have conquered the GMAT. When it comes to probability questions, GMAT tutors at Veritas Prep have you covered!

In addition to providing you with effective GMAT strategies, tips, and top-quality instruction, we also give you choices regarding the format of your courses. We have prep classes that are given online and in person – learn your lessons where you want, and when you want. You may want to go with our private tutoring option and get a GMAT study plan that is tailored to your needs. Contact Veritas Prep today and dive into your GMAT studies!

*Getting ready to take the GMAT? We have **free online GMAT seminars** **running all the time. And, be sure to follow us on **Facebook**, **YouTube**, **Google+**, and **Twitter**!*

The post GMAT Probability Practice: Questions and Answers appeared first on Veritas Prep Blog.

]]>The post Quarter Wit, Quarter Wisdom: How to Negate Assumption Answer Choices on the GMAT appeared first on Veritas Prep Blog.

]]>We already know that many sentences are invalidated by negating the verb of the dominant clause. For example:

*There has been a corresponding increase in the number of professional companies devoted to other performing arts.*

becomes

*There has not been a corresponding increase in the number of professional companies devoted to other performing arts.*

Recently, we got a query on how to negate various modifiers such as “most” and “a majority”. So today, we will examine how to negate the most popular modifiers we come across:

- All -> Not all
- Everything -> Not everything
- Always -> Not always
- Some -> None
- Most -> Half or less than half
- Majority -> Half or less than half
- Many -> Not many
- Less than -> Equal to or more than
- Element A -> Not element A
- None -> Some
- Never -> Sometimes

Let’s take a look at some examples with these determiners:

1) “All of the 70 professional opera companies are commercially viable options.”

This becomes, “Not all of the 70 professional opera companies are commercially viable options.”

2) “There were fewer than 45 professional opera companies that had been active 30 years ago and that ceased operations during the last 30 years.”

This becomes, “There were 45 or more professional opera companies that had been active 30 years ago and that ceased operations during the last 30 years.”

3) “No one who is feeling isolated can feel happy.”

This becomes, “Some who are feeling isolated can feel happy.”

4) “Anyone who is able to trust other people has a meaningful emotional connection to at least one other human being.”

This becomes, “Not everyone who is able to trust other people has a meaningful emotional connection to at least one other human being.”

5) “The 45 most recently founded opera companies were all established as a result of enthusiasm on the part of a potential audience.”

This becomes, “The 45 most recently founded opera companies were not all established as a result of enthusiasm on the part of a potential audience.”

6) “Many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the time period covered by the report.”

This becomes, “Not many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the time period covered by the report.”

7) “The birds of prey capture and kill every single Spotted Mole that comes above ground.”

This becomes, “Not every single Spotted Mole that comes above ground is captured and killed by the birds of prey.”

8) “At least some people who do not feel isolated are happy.”

This becomes, “No people who do not feel isolated are happy.”

9) “Some land-based mammals active in this region, such as fox, will also hunt and eat the Spotted Mole on a regular basis.”

This becomes, “None of the land-based mammals active in this region, such as fox, will also hunt and eat the Spotted Mole on a regular basis.”

10) “No other animal could pose as significant a threat to the above-ground fruits as could the Spotted Mole.”

This becomes, “Some other animals could pose as significant a threat to the above-ground fruits as could the Spotted Mole.”

We hope the next time you come across an assumption question, you will not face any trouble negating the answer choices!

*Getting ready to take the GMAT? We have **free online GMAT seminars** **running all the time. And, be sure to follow us on **Facebook**, **YouTube**, **Google+**, and **Twitter**!*

*Karishma**, a Computer Engineer with a keen interest in alternative Mathematical approaches, has mentored students in the continents of Asia, Europe and North America. She teaches the **GMAT** for Veritas Prep and regularly participates in content development projects such as **this blog**!*

The post Quarter Wit, Quarter Wisdom: How to Negate Assumption Answer Choices on the GMAT appeared first on Veritas Prep Blog.

]]>The post GMAT Tip of the Week: The EpiPen Controversy Highlights An Allergic Reaction You May Have To GMAT Critical Reasoning appeared first on Veritas Prep Blog.

]]>But perhaps only a pre-MBA blog could take the stance “but what is Mylan’s goal?” and expect the overwhelming-and-enthusiastic response “Maximize Shareholder Value! (woot!)” Regardless of your opinion on the EpiPen issue, you can take this opportunity to learn a valuable lesson for GMAT Critical Reasoning questions:

**When a Critical Reasoning asks you to strengthen or weaken a plan or strategy, your attention MUST be directed to the specific goal being pursued.**

Here’s where this can be dangerous on the GMAT. Consider a question that asked:

*Consumer advocates and doctors alike have recently become outraged at the activities of pharmaceutical company Mylan. In an effort to leverage its patent to maximize shareholder value, Mylan has decided to increase the price of its signature EpiPen product sixfold over the last few years. The EpiPen is a product that administers a jolt of epinephrine, a chemical that can open airways and increase the flow of blood in someone suffering from a life-threatening allergic reaction.*

*Which of the following, if true, most constitutes a reason to believe that Mylan’s strategy will not accomplish the company’s goals?*

*(A) The goal of a society should be to protect human life regardless of expense or severity of undertaking.*

*(B) Allergic reactions are often fatal, particularly for young children, unless acted on quickly with the administration of epinephrine, a product that is currently patent-protected and owned solely by Mylan.*

*(C) Computer models predict that, at current EpiPen prices, most people will hold on to their EpiPens well past the expiration date, leading to their deaths and inability to purchase future EpiPens.*

Your instincts as a decent, caring human being leave you very susceptible to choosing A or B. You care about people with allergies – heck, you or a close friend/relative might be one of them – and each of those answer choices provides a reason to join the outcry here and think, “Screw you, Mylan!”

But, importantly for your chances of becoming a profit-maximizing CEO via a high GMAT score, you must note this: neither directly weakens the likelihood of Mylan “leveraging its patent to maximize shareholder value,” and that is the express goal of this strategy. As stated in the argument, that is the only goal being pursued here, so your answer must focus directly on that goal. And as horrible as it is to think that this might be the thought process in a corporate boardroom, choice C is the only one that suggests that this strategy might lead to lesser profits (first they buy the product less often, then they can’t buy it ever again; fewer units sold could equal lower profit).

The lesson here? Beware “plan/strategy” answer choices that allow you to tangentially address the situation in the argument, particularly when you know that you’re likely to have an opinion of some sort on the topic matter itself. Instead, completely digest the specifics of the stated goal, and make sure that the answer you choose is directly targeted at the objective. Way too often on these problems, students insert themselves in the larger topic and lose sight of the specific goal, falling victim to the readily available trap answers.

So give your GMAT score a much-needed shot of Critical Reasoning epinephrine – focus on the specifics of the plan, and save your tangential angst for the social media where it belongs.

*Getting ready to take the GMAT? We have free online GMAT seminars running all the time. And as always, be sure to follow us on Facebook, YouTube, Google+ and Twitter!*

*By Brian Galvin.*

The post GMAT Tip of the Week: The EpiPen Controversy Highlights An Allergic Reaction You May Have To GMAT Critical Reasoning appeared first on Veritas Prep Blog.

]]>The post Scheduling Your GMAT Test: Dates, Where & When to Take the GMAT Exam appeared first on Veritas Prep Blog.

]]>Get the lowdown on the GMAT, test dates and locations, as well as how long a person should take to prep for this difficult exam before signing up:

**When Can I Take the GMAT?**

If you are planning to take the GMAT, you’ll be glad to know that it is given many times throughout the year. The process begins by visiting the official website for the GMAT. Fortunately, it is fairly easy to sign up to take the GMAT. Exam dates are shown for testing centers that are convenient to you – once you choose the most convenient place to take the GMAT, testing dates and times are made available for your consideration. Keep in mind that there is a fee of $250 to take the test.

**Where Do I Take the Test?**

To find a testing location, type your complete address into the search engine on the GMAT website. You may also enter in your city and state or simply your ZIP code to get results. This data brings up options for testing locations in your area. You can choose up to three options to compare times for the GMAT, exam dates, and convenient locations. This search allows you to settle on a testing situation that suits your schedule. GMAT exam-takers should then sign up for the dates and times they like best.

**How Do I Sign Up for the GMAT?**

After looking at GMAT test dates and locations, you can create an account on the testing website. This allows you to register for the exam and gives you access to other important test information. Not only can someone taking the GMAT schedule test appointments with this account, but you can also reschedule a test or cancel your testing appointment if necessary.

**How Long Do I Need to Prepare for the GMAT?**

It’s a good idea to study for the GMAT in a gradual way. Trying to cram for this challenging test can be stressful and result in a waste of your time and money. Three months is a reasonable amount of time to spend preparing for this exam.

The GMAT has four sections: Analytical Writing, Integrated Reasoning, Quantitative, and Verbal. Taking a practice test should be your first order of business when preparing for the exam. The results can help you determine where to begin your studies. In order to achieve a high score on the GMAT, you must learn how to approach the questions on the test as opposed to memorizing facts. Our thorough GMAT curriculum at Veritas Prep teaches you how to evaluate and interpret the questions on this exam to filter out unessential information. We teach you how to think like a professional in the business world so you can showcase your higher-level thinking skills on test day.

**Helpful Tips for Test Day**

It’s normal to be at least a little bit nervous on test day, but you can reduce that anxiety by making sure that you take everything you need to the testing location. For example, you need to have government-issued identification that includes your name, date of birth, photo, and signature in order to take the test. Keep in mind that the name on your ID must be the same as the one on your registration form.

Prepare to spend about four hours at the testing location. Testers may take advantage of the optional two breaks to refresh themselves. Remember that phones, tablets, and other technological devices are not allowed in the testing room.

At Veritas Prep, our professional instructors have the experience and the knowledge to prepare you for the GMAT. Our students learn strategies that give them an advantage over their fellow test-takers. We offer a variety of study options that help you to garner the skills and knowledge you need to walk into the testing center with confidence. Call or email our offices today to get started on the path toward admission into a preferred business school.

*Getting ready to take the GMAT? We have **free online GMAT seminars** **running all the time. And as always, be sure to follow us on **Facebook**, **YouTube**, **Google+**, and **Twitter**!*

The post Scheduling Your GMAT Test: Dates, Where & When to Take the GMAT Exam appeared first on Veritas Prep Blog.

]]>The post Quarter Wit, Quarter Wisdom: The Power of Deduction on GMAT Data Sufficiency Questions appeared first on Veritas Prep Blog.

]]>We know that the total number of factors of a number A (prime factorised as X^p * Y^q *…) is given by (p+1)*(q+1)… etc.

So, if we know that a number has, say, 6 total factors, what can we say about the number?

6 = (p+1)*(q+1) = 2*3, so p = 1 and q = 2 or vice versa.

A = X^1 * Y^2 where X and Y are distinct prime numbers.

Today, we will look at a data sufficiency question in which we can use factors to deduce much more information than what we might first guess:

*When the digits of a two-digit, positive integer M are reversed, the result is the two-digit, positive integer N. If M > N, what is the value of M?*

*Statement 1: The integer (M – N) has 12 unique factors.*

*Statement 2: The integer (M – N) is a multiple of 9.*

With this question, we are told that M is a two-digit integer and N is obtained by reversing it. So if M = 21, then N = 12; if M = 83, then N = 38 (keeping in mind that M must be greater than N). In the generic form:

M = 10a + b and N =10b + a (where a and b are single-digit numbers from 1 to 9. Neither can be 0 or greater than 9 since both M and N are two-digit numbers.)

We also know that no matter what M and N are, M > N. Therefore:

10a + b > 10b + a

9a > 9b

a > b

Let’s examine both of our given statements:

*Statement 1: The integer (M – N) has 12 unique factors.*

First, let’s figure out what M – N is:

M – N = (10a + b) – (10b + a) = 9a – 9b

Say M – N = A. This would mean A = 9(a-b) = 3^2 * (a-b)

The total number of factors of A where A = X^p * Y^q *… can be calculated using the formula (p+1)*(q+1)* …

We know that A has 3^2 as a factor, so X = 3 and p = 2. Therefore, the total number of factors would be (2+1)*(q+1)*… = 3*(q+1)*… = 12, so (q+1)*… must be 4.

Case 1:

This means q may be 3 so that (q+1) is 4. Since a-b must be less than or equal to 9 and must also be the cube of a number, (a-b) must be 8. (Note that a-b cannot be 1 because then the total number of factors of A would only be 3.)

So, a must be 9 and b must be 1 in this case (since a > b). The integers will be 91 and 19, and since M > N, M = 91.

Case 2:

Another possibility is that (a-b) is a product of two prime factors (other than 3), both with the power of 1. In that case, the total number of factors = (2+1)*(1+1)*(1+1) = 12

Note, however, that the two prime factors (other than 3) with the smallest product is 2*5 = 10, but the difference of two single-digit positive integers cannot be 10. This means that only Case 1 can be true, therefore, Statement 1 alone is sufficient. This is certainly not what we expected to find from just the total number of factors!

*Statement 2: The integer (M – N) is a multiple of 9.*

M – N = (10a + b) – (10b + a) = 9a – 9b, so M – N = 9 (a-b) . This is already a multiple of 9.

We get no new information with this statement; (a-b) can be any integer, such as 2 (a = 5, b = 3 or a = 7, b = 5), etc. This statement alone is insufficient, therefore our answer is A.

Don’t take the given data of a GMAT question at face value, especially if you are expecting questions from the 700+ range. Ensure that you have deduced everything that you can from it before coming to a conclusion.

*Getting ready to take the GMAT? We have **free online GMAT seminars** **running all the time. And, be sure to follow us on **Facebook**, **YouTube**, **Google+**, and **Twitter**!*

*Karishma**, a Computer Engineer with a keen interest in alternative Mathematical approaches, has mentored students in the continents of Asia, Europe and North America. She teaches the **GMAT** for Veritas Prep and regularly participates in content development projects such as **this blog**!*

The post Quarter Wit, Quarter Wisdom: The Power of Deduction on GMAT Data Sufficiency Questions appeared first on Veritas Prep Blog.

]]>The post GMAT Tip of the Week: Making Your GMAT Score SupeRIOr to Ryan Lochte’s appeared first on Veritas Prep Blog.

]]>Whatever it is, it can’t be nearly as bad as being pulled over by fake cops – no lights or nothing, just a badge – then being told to get on the ground and having a gun placed on your forehead and being like, “whatever.” So your big event of 2016 will already go a lot better than Ryan Lochte’s did; you have that going for you.

What else do you have going for you on the GMAT? The ability to learn from the most recent few days of Lochte’s life. Lochte’s biggest mistake wasn’t vandalizing a gas station bathroom at 4am, but rather making up his own story and creating an even larger mess. And that’s a huge lesson that you need to keep in mind for the GMAT:

Don’t make up your own story.

Here’s what that means, on three major question types:

**DATA SUFFICIENCY**

People make up their own story on Data Sufficiency all the time. And like a prevailing theory about Lochte (he didn’t connect the vandalism of the bathroom to the men coming after him for restitution; he really did think that he had been robbed for no reason), it’s not that they’re intentionally lying. They’re just “conveniently” misremembering what they’ve read or connecting dots that weren’t actually connected in real life. Consider the question:

*The product of consecutive integers a, b, c, and d is 5040. What is the value of integer d?*

*(1) d is prime*

*(2) d < c < b < a*

Once people have factored 5040 into 7*8*9*10, they can then quickly recognize that Statement 1 is sufficient: the only prime number in that bunch is 7, so d must be 7. But then when it comes to Statement 2, they’ve often made up their own story. By saying “d is the smallest, and, yep, that’s 7!” they’re making up the fact that these consecutive integers are positive. That was not specifically stated! So it could be 7, 8, 9, and 10 or it could be -7, -8, -9, and -10, making d either -10 or 7. And the GMAT (maybe like an NBC interviewer?) makes it easy for you to make up your own story.

With Statement 1, prime numbers must be positive, so if you weren’t already thinking only about positives, the question format nudges you further in that direction. The answer is A when people often mistakenly choose D, and the reason is that the question makes it easy for you to make up your own story when looking at Statement 2. So before you submit an answer, always ask yourself, “Am I only using the facts explicitly provided to me, or am I somehow making up my own story?”

**CRITICAL REASONING**

Think of your friends who are good storytellers. We hate to break it to you, but they’re probably making at least 10-20% of those stories up. Which makes sense. “It was a pretty big fish,” is a lot less compelling than, “It was the biggest fish any of us had ever seen!” Case in point, the Olympics themselves.

No commentator this week has said that Michael Phelps, Lochte’s teammate, is “a really good swimmer.” They’re posing, “Is he the greatest athlete of all time?” because words that end in -st capture attention (and pageviews). Even Lochte was guilty of going overly-specific for dramatic effect: there was, indeed, a gun pointed at his taxi, but not resting on his forehead. His version just makes the story more exciting and dramatic…and you may very well be guilty of such a mistake on the GMAT. Consider:

*About two million years ago, lava dammed up a river in western Asia and caused a small lake to form. The lake existed for about half a million years. Bones of an early human ancestor were recently found in the ancient lake bottom sediments on top of the layer of lava. Therefore, ancestors of modern humans lived in Western Asia between 2 million and 1.5 million years ago.*

*Which one of the following is an assumption required by the argument?*

*(A) There were not other lakes in the immediate area before the lava dammed up the river.*

* (B) The lake contained fish that the human ancestors could have used for food.*

* (C) The lava under the lake-bottom sediments did not contain any human fossil remains.*

* (D) The lake was deep enough that a person could drown in it.*

* (E) The bones were already in the sediments by the time the lake disappeared.*

The correct answer here is E (if the bones were not already there, then they’re not good evidence that people were there during that time), but the popular trap answer is C. Consider what would happen if C were untrue: that means that there were human fossil remains that pre-date the time period in question.

But here’s where Lochte Logic is dangerous: you’re not trying to prove that the FIRST humans lived in this period at this time; you’re just trying to prove that humans lived here during that time. And whether or not there were fossils from 2.5 million or 4 million years ago doesn’t change that you still have this evidence of people in that 2 million-1.5 million years ago timeframe.

When people choose C, it’s almost always because they made up their own story about the argument – they read it as, “The earliest human ancestors lived in this place and time,” and that’s just not what’s given. Why do they do that? For Lochte’s very own reasons: it makes the story a little more interesting and a little more favorable.

After all, the average pre-MBA doesn’t spend much time reading about archaeology, but if some discovery is that level of exciting (We’ve discovered the first human! We’ve discovered evidence of aliens!) then it crosses your Facebook/Twitter feeds. You’re used to reading stories about the first/fastest/greatest/last, and so when you get dry subject matter your mind has a tendency to put those words in there subconsciously. Be careful – do not make up your own story about the conclusion!

**READING COMPREHENSION**

A similar phenomenon occurs with Reading Comprehension. When you read a long passage, your mind tends to connect dots that aren’t there as it fills in the rest of the story for you. Just like Lochte, who had to fill in the gap of, “Hey what would I have said if someone pointed a gun at me and told me to get on the ground? Oh right…’whatever’ is my default answer for most things,” your mind will start to fill in details that make logical sense.

The problem then comes when you’re asked an Inference question, for which the correct answer must be true based on the passage. For example, if two details in a passage are:

- Michael swam the fastest race of his life.
- Ryan’s race was one of the slowest he’s ever swam.

You might answer the question, “*Which of the following is a conclusion that can be drawn from the passage?*” with:

*(A) Michael swam faster than Ryan.*

Your mind – particularly amidst a lot of other text between those two facts – wants to logically arrange those two swims together, and with “fastest” for Michael and “slowest” for Ryan, it kind of seems logical that Michael was faster. But those two races are never compared directly to each other. Consider that if Michael and Ryan aren’t Phelps and Lochte, but rather filmmaker Michael Moore and Olympic champion Ryan Lochte, then of course Lochte’s slowest swim would still be way, way faster than Moore’s fastest.

Importantly, Reading Comprehension questions love to bait unwitting test-takers with comparisons as answer choices, knowing that your mind is primed to create your own story and draw comparisons that are probably true, but just not proven. So again, any time you’re faced with an answer that seems obvious, go back and ask yourself if the details you’re using were provided to you, or if instead, you’re making up your own story.

So learn a valuable lesson from Ryan Lochte and avoid making up your own story, sticking only to the clean facts of the matter. Stay true to the truth, and you’ll walk out of the test center saying “Jeah!”

*Getting ready to take the GMAT? We have free online GMAT seminars running all the time. And as always, be sure to follow us on Facebook, YouTube, Google+ and Twitter!*

*By Brian Galvin.*

The post GMAT Tip of the Week: Making Your GMAT Score SupeRIOr to Ryan Lochte’s appeared first on Veritas Prep Blog.

]]>The post GMAT Math Cheat Sheet: Formulas and Tips for Success appeared first on Veritas Prep Blog.

]]>If you’re concerned about the math questions on the GMAT, it can be useful to become more familiar with the specific content in this section. Find out about the types of problems in the Quantitative section and consider some GMAT geometry formulas. Also, check out a gathering of tips on how to prep in an effective way:

**What is in the Quantitative Section?**

Data Sufficiency and Problem-Solving are the two types of questions in the Quantitative section. The Problem-Solving questions are multiple-choice and test your skills in algebra, basic arithmetic, and geometry. The basic arithmetic questions involve decimals, positive and negative integers, fractions, percentages, and averages. The problems you find in this section are on par with the level of material taught in high school math classes. Though many of the questions on the exam involve basic arithmetic, it’s helpful to have a GMAT formula sheet to refer to when preparing for algebra and geometry problems.

**GMAT Formulas for the Math Section**

Your GMAT math formulas cheat sheet should include the Pythagorean Theorem. This formula helps you to find the measurement of the third side of a right triangle when given the measurements of the other two sides. Another item on your GMAT math cheat sheet should be A = 1/2 bh, which is the formula for finding the area of a triangle. Distance = rate*time is a very helpful formula to know, too. Find the area of a rectangle in fast fashion by using the formula A = lw. The formula A = s2 will help you discover the area of a square.

**Moving Beyond Memorization**

A GMAT math formulas cheat sheet is an effective study tool, but it’s equally important to know which formula to apply to a problem, so you should spend time practicing problems that employ each of those formulas. This way, on test day, you’ll be familiar with the formulas and feel comfortable using them. The easiest way to do this, of course, is to let us help you.

The expert instructors at Veritas Prep partner with students to help them learn and to practice these formulas for the Quantitative section. We hire tutors who have excellent teaching skills as well as GMAT scores in the 99th percentile. When you study with us, you know you’re learning from the best! Our instructors work through practice math problems with you to ensure that you understand how to solve them in the most efficient way.

**Get the Timing Right**

Test-takers are given 75 minutes to tackle the 37 questions in the Quantitative section. This sounds like a long time, but if you get hung up on one question for several minutes, you could end up running out of time for this section. In order to avoid this, you should take timed practice tests. Taking timed tests allows you to establish a rhythm for solving problems and answering questions. Once you establish a rhythm, you don’t have to be so concerned about running out of time before you finish all of the problems.

**More Tips for Mastering the Quantitative Section**

Studying with a GMAT math cheat sheet is one way to prepare for the test. Another way to save test time and make questions more manageable is to eliminate answer options that are clearly wrong – this allows your mind to focus only on the legitimate choices. Estimating the answer to a problem as you read through it is another way to save test time and arrive at answers more quickly.

Our GMAT curriculum teaches you how to approach questions on the separate math topics within the Quantitative section. Our strategies give you the tools you need to problem-solve like a business professional! We are proud to provide both online and in-person courses that prepare you for the GMAT. Veritas Prep instructors offer solid instruction as well as encouragement to individuals with the goal of acing the GMAT and getting into a preferred business school. Let us partner with you on the road to GMAT success! Contact us to talk with one of our course advisers today.

*Plan on taking the GMAT soon? We have GMAT prep courses starting all the time. And be sure to follow us on Facebook, YouTube, Google+ and Twitter!*

The post GMAT Math Cheat Sheet: Formulas and Tips for Success appeared first on Veritas Prep Blog.

]]>The post When to Pick Your Own Numbers on GMAT Quant Questions appeared first on Veritas Prep Blog.

]]>As luck would have it, on her previous practice exam she’d received the following problem, which both illustrates the value of picking numbers and demonstrates why this approach works so well.

*A total of 30 percent of the geese included in a certain migration study were male. If some of the geese migrated during the study and 20 percent of the migrating geese were male, what was the ratio of the migration rate for the male geese to the migration rate for the female geese? *

*[Migration rate for geese of a certain sex = (number of geese of that sex migrating) / (total number of geese of that sex)] *

A) 1/4

B) 7/12

C) 2/3

D) 7/8

E) 8/7

This is a perfect opportunity to break out two of my favorite GMAT tools: picking numbers and making charts. So, let’s say there are 100 geese in our population. That means that if 30% are male, we’ll have 30 male geese and 70 females geese, giving us the following chart:

Male | Female | Total | |

Migrating | |||

Not-Migrating | |||

Total | 30 | 70 | 100 |

Now, let’s say 10 geese were migrating. That means that 90 were not migrating. Moreover, if 20 percent of the migrating geese were male, we know that we’ll have 2 migrating males and 8 migrating females, giving us the following:

Male | Female | Total | |

Migrating | 2 | 8 | 10 |

Not-Migrating | |||

Total | 30 | 70 | 100 |

(Note that if we wanted to, we could fill out the rest of the chart, but there’s no reason to, especially when we’re trying to save as much time as possible.)

Our migration rate for the male geese is 2/30 or 1/15. Our migration rate for the female geese is 8/70 or 4/35. Ultimately, we want the ratio of the male migration rate (1/15) to the female migration rate (4/35), so we need to simplify (1/15)/(4/35), or (1*35)/(15*4) = 35/60 = 7/12. And we’re done – B is our answer.

My student was skeptical. How did we know that 10 geese were migrating? What if 20 geese were migrating? Or 50? Shouldn’t that change the result? This is the beauty of picking numbers – it doesn’t matter what number we pick (so long as we don’t end up with an illogical scenario in which, say, the number of migrating male geese is greater than the number of total male geese). To see why, watch what happens when we do this algebraically:

Say that we have a total of “t” geese. If 30% are male, we’ll have 0.30t male geese and 0.70t females geese. Now, let’s call the migrating geese “m.” If 20% are male, we’ll have 0.20m migrating males and 0.80m migrating females. Now our chart will look like this:

Male | Female | Total | |

Migrating | 0.20m | 0.80m | m |

Not-Migrating | |||

Total | 0.30t | 0.70t | t |

The migration rate for the male geese is 0.20m/0.30t or 2m/3t. The migration rate for the female geese is 0.80m/0.70t or 8m/7t. We want the ratio of the male migration rate (2m/3t) to the female migration rate (8m/7t), so we need to simplify (2m/3t)/(8m/7t) = (2m*7t)/(3t * 8m) = 14mt/24mt = 7mt/12mt = 7/12. It’s clear now why the numbers we picked for m and t don’t matter – they cancel out in the end.

Takeaway: We cannot say this enough: the GMAT is not testing your ability to do formal algebra. It’s testing your ability to make good decisions in a stressful environment. So your goal, when preparing for this test, isn’t to become a virtuoso mathematician, even for the toughest questions. It’s to practice the kind of simple creative thinking that will get you to your answer with the smallest investment of your time.

*Plan on taking the GMAT soon? We have GMAT prep courses starting all the time. And be sure to follow us on Facebook, YouTube, Google+ and Twitter!*

*By David Goldstein, a Veritas Prep GMAT instructor based in Boston. You can find more articles written by him here.*

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]]>The post Invest in Your Success: Preparing for the GMAT in 3, 2, 1 Months appeared first on Veritas Prep Blog.

]]>**Things to Consider Before Starting the Study Process**

Before estimating your GMAT preparation time, it’s a good idea to look at the application deadlines for the business schools you’re interested in. Ideally, you want to submit your GMAT scores by a school’s application deadline. For example, a business school might have an application deadline of Oct. 5. Taking the GMAT in August would allow you enough time to retake the test if you’re not satisfied with your score. And if you’re taking the GMAT in August, you could also start studying in May to allow yourself three months of GMAT preparation time.

When you study with our instructors at Veritas Prep, you’ll learn how to approach the questions on the GMAT. Our GMAT curriculum zeros in on each subject within the four sections. We reveal subtleties of the test that can help you avoid common mistakes and achieve a high score.

**How to Prepare for the GMAT in 3 Months**

Three months is an optimal amount of time to prepare for the GMAT. Naturally, many prospective MBA students want to know the specifics of how to prepare for the GMAT in 3 months. Of course, there isn’t a one-size-fits-all answer when it comes to a study schedule. Some people study for three hours per day, five days a week, while others study for two hours a day, seven days a week.

After looking at your practice test results, you may see that you did well on algebra and basic arithmetic questions but need to work on geometry and Data Sufficiency problems, so a two-hour study period on one day may begin with 30 minutes of quizzing yourself with geometry flashcards and 30 minutes of practice problems. The second hour could be dedicated to Data Sufficiency study – this involves evaluating Data Sufficiency questions to practice weeding out unessential information.

During each week of the three-month period, you could work on Quantitative skills for two days, Verbal skills for two days, Integrated Reasoning skills for two days, and Analytical Writing for one. Varying a study schedule helps you cover all of the skills you need to practice and keeps you from growing tired of the routine.

**Two Months to Prepare for the Test**

Perhaps you’re wondering how to prepare for the GMAT in 2 months. Two months is a relatively short time to study for the GMAT, but it can work, especially if you get impressive results on your practice tests.

One tip is to study for two or three hours several days a week. If your test results reveal that you need to strengthen your Reading Comprehension skills, try increasing the amount of reading you do. Reading financial magazines and newspapers can give you practice with evaluating an author’s intentions and finding the main ideas. Alternatively, if your practice test reveals the need to work on basic arithmetic, you can spend 30 minutes each study period with flashcards containing fractions, percentages and probability problems. Let your practice test results guide your study to make it efficient.

**One Month to Prepare for the Test**

But what if you’re short on time and need to know how to prepare for the GMAT in 1 month? Once again, your practice test results should guide you in your studies. If you have just one month to prepare, it’s best to study for two or three hours each day of the week.

If you need to strengthen your Analytical Writing skills, find some high-scoring GMAT essays to study. These will help you to see what elements you need to include in your own practice essays. If you find that you run out of time on a practice test in the Quantitative section, work on establishing a pace that allows you to finish in time. Most importantly, create a study schedule ahead of time and follow it closely throughout the month so you give each subject enough attention.

Veritas Prep’s instructors stand ready to help, no matter how many months you have to prepare for the GMAT. Our prep courses are available both online and in person. Contact our offices today to start studying for the GMAT!

*Getting ready to take the GMAT? We have **free online GMAT seminars** **running all the time. And, be sure to follow us on **Facebook**, **YouTube**, **Google+**, and **Twitter**!*

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]]>The post Quarter Wit, Quarter Wisdom: Know Your Subtraction for the GMAT! appeared first on Veritas Prep Blog.

]]>*The last digit of 12^12 + 13^13 – 14^14 × 15^15 =*

*(A) 0*

*(B) 1*

*(C) 5*

*(D) 8*

*(E) 9*

This is a simple question based on the cyclicity of units digits. There are 3 terms here: 12^12, 13^13 and (14^14)*(15^15). Let’s find the last digit of each of these terms:

12^12

The units digit of 12 is 2.

2 has a cyclicity of 2 – 4 – 8 – 6.

The cycles end at the powers 4, 8, 12 … etc. So, twelve 2’s will end in a units digit of 6.

13^13

The units digit of 13 is 3.

3 has a cyclicity of 3 – 9 – 7 – 1.

A new cycle starts at the powers 1, 5, 9, 13 … etc. So, thirteen 3’s will end in a units digit of 3.

(14^14)*(15^15)

This term is actually the most simple to manage in the case of its units digit – an even number multiplied by a multiple of 5 will end in 0. Also, note that this will be a huge term compared to the other two terms.

This is what our expression looks like when we consider just the units digits of these terms:

(A number ending in 6) + (A number ending in 3) – (A much greater number ending in 0)

Looking at our most basic options, a number ending in 6 added to a number ending in 3 will give us a number ending in 9 (as 3 + 6 = 9). So, the expression now looks like this:

(A number ending in 9) – (A much greater number ending in 0)

It is at this point that many people mess up. They deduce that 9-0 will end in a 9, and hence, the answer will be E. All their effort goes to waste when they do this. Let’s see why:

How do you subtract one number out of another? Take, for example, 10-7 = 3

This can also be written as 7-10 = -3. (Here, you are still subtracting the number with a lower absolute value from the number with a greater absolute value, but giving it a negative sign.)

Let’s try to look at this in tabular form. The number with the greater absolute value goes on the top and the number with the smaller absolute value goes under it. You then subtract and the result gets the sign of the number with the greater absolute value.

**(i) 100-29**

100

-29

071

**(ii) 29-100**

100

-29

071

(But since the sign of 100 is negative, your answer is actually -71.)

So, the number with greater absolute value is always on top. Going back to our original question now, (A number ending in 9) – (A much greater number ending in 0) will look like:

abcd0

– pq9

ghjk1

Ignoring the letter variables (these are simply placeholders), note that the greater number ending in 0 will be on the top and the smaller one ending in 9 will be below it. This means the answer will be a negative number ending in a units digit of 1. Therefore, our answer is B.

As we learn more advanced concepts, make sure you are not taking your basic principles for granted!

*Getting ready to take the GMAT? We have **free online GMAT seminars** **running all the time. And, be sure to follow us on **Facebook**, **YouTube**, **Google+**, and **Twitter**!*

*Karishma**, a Computer Engineer with a keen interest in alternative Mathematical approaches, has mentored students in the continents of Asia, Europe and North America. She teaches the **GMAT** for Veritas Prep and regularly participates in content development projects such as **this blog**!*

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