Absolute Values (AVs) questions in GMAT can be a time saver for you if you understand a few rules. Capture the following notes and use it as a reference for your GMAT exam.

1. Absolute Value equations are two equations disguised as one

You can split up any equation involving absolutes into two, and solve for each solution. One will look identical to the given, and the other is found by multiplying the inside by -1. Remember to multiply the entire expression by -1.

| (x + 5)/3 | = 11 turns into:

(x + 5)/3 = 11, and

(x+5)/3 = -11

x + 5 = 33

x + 5 = -33

x = 28 x = -38

Note that plugging either x = 28 or x = -38 into the original equation will check out. Also note that solutions for variables within absolute value questions can be negative. What is spit out of the AV cannot be negative, but what goes in can be anything.

2. Think of Absolute Values as distances from zero

If an AV = 15, that means whatever is inside the AV is exactly 15 above or below zero on the number line.

...

### Never actually understood Absolute Values ? Here is your chance!

**Categories**: Absolute Value

### (GMAT 800) Data Sufficiency Quadratic Equations with Explanation

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data are needed.

Explanation:

This question asks whether the information in one or both statements is sufficient to find a specific value. But we don't actually have to determine the value, just know that it can be determined.

(1) Quadratic equations have two solutions. However, sometimes those two solutions are identical with each other. If they are different, then solving this equation will lead to two possible values of x, and presumably also two possible values of f(x), so this would not be sufficient. But if they are the same, i.e. if there's really only one solution to this equation, then we would definitely know x, definitely know f(x), and...

### GMAT Fractions - Don't get lost in the calculations

Have you wondered how writers can make a seemingly simple GMAT topic like fractions into time-consuming calculations. One strategy that GMAT test takers must adopt to simplify the calculations. For example

Dividing by 5 is the same as multiplying by 2/10. For example:

• 840/5 = ?

• 840/5 = 840*(2/10) = 84*2 = 168

Multiplying or dividing by 10’s and 2’s is generally easier than using 5’s. 90% of the time, fractions will be easier to perform arithmetic. Decimals are sometimes more useful when comparing numbers relative to one another, such as in a number line, but these questions are the exception. Even if given a decimal (or percent) looks easy, quickly convert to a fraction. Some common ones to memorize:

• 1/9 = 0.111 repeating

• 1/8 = 0.125

• 1/7 = ~0.14

• 1/6 = 0.166 repeating

• 1/5 = 0.20

• 1/4 = 0.25

• 1/3 = 0.333 repeating

• 1/2 = 0.5 repeating

Note: Multiples of these, such as 3/8 (0.375) are also important to remember, but can easily be derived by multiplying the original fraction (1/8 * 3 = 3/8 = 0.125 * 3 = 0.375)

Denominators are super important. A denominator of a reduced fraction with a multiple of 7 will not have a finite...

### How to study for the GMAT in one month?

**Categories**: GMAT Study Plan

Ideally you should spend 3 months for your GMAT Prep(Read How to prepare for the GMAT in 3 months?). If you have one month, here is a focused way to plan your studies:

Week 1: Diagnosis and Practice

Take a practice test and carefully go over your wrong answers. Look for patterns. You want to see if there is one particular section or problem type that is hurting you more than all others. Do additional practice problems if the practice test yields inconclusive information. Read explanations for wrong answers and map out three to five consistent weaknesses. You will focus on these in the next week.

Week 2: Focused Study

Now is the time to deal with your weaknesses. Depending on how many you identified, you will want to spend 1 – 2 days focusing on each. If strengthening arguments questions are your Kryptonite, put a night or two of studying into that. If data sufficiency algebra is killing you, spend an afternoon reading strategies and explanations related to it. You should spend this week doing a combination of practice problems and content coursework about math and English. Take super-concise notes that you can review later.

The goal during this period is...

### GMAT Reading Comprehension Time Management - 7 Rules

**Categories**: Reading Comprehension

Timing is everything in GMAT. Computer Adaptive Tests (CATs) have additional constraints apart from limited time: You cannot return to previous questions, you can't skip a question and you are penalized more for unanswered questions than for wrong answers.

For many GMAT test takers, the ticking clock on the top right corner of the screen is a constant source of worry. "How much time should I spend on this question?". "Should I guess and move on?". These questions will force even the coolest test takers to make irrational decisions.

Don’t let stress over the clock have a negative impact on your confidence or your GMAT score! You do not want the time crunch to take focus away from answering the questions correctly.

Consistently practicing time management skills will allow you to become more comfortable with this aspect of the test and refocus your energy on reasoning skills necessary to pick the correct answer choice.

1) 6 Minutes vs 8 Minutes: Spend around 6 minutes on a reading comprehension passage with 3 questions, and around 8 minutes on a passage with 4 questions.

2) 2 Minutes Quick...

### First Ten GMAT Questions - 9 Things to consider

**Categories**: GMAT Tips

A common belief is that the first ten questions “count” the most in each section of the GMAT, and that in light of this “fact,” you should spend more time on these early questions than you do on the rest of the test. Unfortunately, this belief is false, and its implied course of action could actually be detrimental to your score. Put plainly: you might hurt your score by spending more time on the early questions that you do on later ones.

Some people continue to believe this legend, despite all the evidence to the contrary. If you still think that the first questions count more than later ones, or if you’re still not sure what you think, then read on. You need to know the facts of the matter if you’re going to succeed on the GMAT.

1. The GMAT itself states that the first ten questions don’t count more.

If you have your Official Guide handy, open it up to page 17, bottom right. There’s a text box there with the header “Myth vs Fact.” Here the test maker specifically says that it is a myth that you should invest all your time in the first ten questions, and adds, “all questions count.”

...

### GMAT Data Sufficiency Strategy - Don’t Contradict Yourself

**Categories**: Data Sufficiency

True to their name, Data Sufficiency questions ask you to determine when you will have enough information to make a conclusive decision. In doing so, these questions can assess your ability to plan ahead for a task; to elicit an effective return-on-investment (remember, you can’t use both statements if one of them is, alone, sufficient), to find flaws with conventional wisdom, and to think flexibly. Data Sufficiency questions also strike fear and loathing in the hearts of many GMAT examinees, but hold a special place in the hearts of a select few who love the nuance that these questions permit.

There’s a hard-and-fast rule regarding Data Sufficiency that people don’t know and use as much as they should: the statements can never contradict each other. Knowing this, if your answers for statement 1 and statement 2 are different, you must go back and reconsider your math; as Boston GMAT tutor David says, that’s an “answer choice F”, meaning that you just effed up the math somehow.

Consider the question:

Is x...

### GMAT is famous for using your own momentum against you

Like a tae kwon do blackbelt or an icy road, the GMAT is perhaps most famous for its ability to use your own momentum against you. Few places is this as evident as on Critical Reasoning questions, in which the most common way to answer incorrectly is to allow your subconscious mind to lead you to a slightly-out-of-scope conclusion that the psychological warriors at GMAC have already anticipated you’d conclude. Accordingly, to perform well on Critical Reasoning questions it is, well, critical that you pay particular attention to the narrow scope of the conclusion. As an example, consider the question:

Poor physical fitness among children has become an epidemic among American children. In Europe, however, where schoolchildren participate in calisthenics and other athletic activities on a daily basis while at school, children are significantly more fit. Tests show that European students have superior strength and agility, and that they are significantly more likely than are American children to maintain a healthy lifestyle throughout their lives. Therefore, we must conclude that American children can become more...

### GMAT Word Problems - Basics

Word problems on the GMAT get an unfair reputation for being especially challenging. However, it’s helpful to think of them as just dressed-up algebra. The real challenge is that they are (1) long, (2) boring, and (3) require translation from ‘English’ to ‘Math.’ Here are a few questions to ask yourself to make sure you fully break down and understand the problem BEFORE you start to solve!

What is the problem really asking?

Make sure to understand what the answer choices represent. Are they the total number of dollars of profit? The profit accumulated by Jenny only? The percent increase in profit from June to July? Taking the time to do this will also ensure you never leave a problem half finished. If you dive into setting up an equation too quickly, you may realize half-way through that you’re solving for the wrong variable. Sometimes word problems will add an extra step at the end. You may be busy solving for “x” and forget that the problem is asking for the value of “1/x”.

What information am I given?

The best...

### 4 Summer Habits for GMAT Preparation

**Categories**: GMAT Preparation

As you read this article, the entire summer is ahead of you. But if you are planning to apply to business school this fall, you should heed the warning that you learned in your earlier scholastic days – time flies when you’re having fun, and the fall, like those objects in your rearview mirror, is probably closer than it appears.

Rest assured that you can still enjoy most of your summer even if you don’t plan on taking the GMAT until later in the fall. But even without dedicating much of the summer to studying, there are at least four habits you can add to your day-to-day lifestyle that will get you ready to hit the ground running when you do begin your GMAT preparation in earnest sometime soon:

1) Read

The GMAT verbal section is a test of focus and concentration, assessing your ability to process written information on a variety of topics and to do so while tired and distracted. There are certainly techniques to help you navigate the GMAT-specific passage formats and question types, and you’ll learn those when you’re ready to buckle down on GMAT study. But in the meantime, you can improve your ability to process that information simply by reading more, and by reading articles and books on topics that aren’t as natural of choices for you. Traveling this summer? Bring The Economist on...

### How to use Active Thinking in GMAT Problem Solving

**Categories**: Problem Solving

Quick brainteaser for you: If 3 bunnies can eat 3 carrots in one hour, how many carrots can 1.5 bunnies eat in one hour?

Really take a moment to think about it.

Do you have an answer?

Ok. If you answered, or even were tempted to answer, “1.5 carrots,” then I’m glad that you’re reading this article! The thing is, while the bunnies are eating carrots at the rate of one per hour, it doesn’t follow that 1.5 bunnies will eat 1.5 carrots. 1.5 bunnies will only eat one carrot, because 1.5 bunnies is really just 1 bunny. (That half a bunny isn’t feeling very well and doesn’t want any carrots.)

I don’t mean to say that this is a GMAT-style problem, but if you found yourself answering “1.5 carrots,” then you are prone to operating on autopilot. Students who operate on autopilot will often fall into traps, and they may become overwhelmed by questions that don’t fall clearly into easily recognized patterns. And let me tell you – you will likely see many problems on the GMAT that don’t fall into common patterns!

Active Thinking...

### How to handle nerves on GMAT test day?

**Categories**: GMAT Exam Day Tips

Test day is no different than any other GMAT prep days. You have to be focused, prepared and give your best shot. But we are not robots, we are humans. So it is natural to feel a little bit anxious. But if you feel: cold sweats, night terrors, the shakes, and so on, then you are showing signs of acute anxiety. Knowing what to expect in the testing center will help you relieve some of the unnecessary anxiety. Here is Knewton's minute by minute breakdown of what to expect in the test center.

1. Arrive early, but don’t plan on studying at the testing center. 30 minutes before liftoff

Show up to the test center 30 minutes before the official time, as the GMAC suggests. Although this may mean waking up even earlier than expected, avoiding any feeling of being rushed is priceless. However, many testing centers don’t allow studying in the waiting room, so don’t plan on getting there early and reviewing notes. Use the time before the test to relax and focus on the task at hand.

2. Locker Room. 10 minutes before liftoff

After presenting your identification and test reservation, you may be given...

### Idioms

On the GMAT sentence corrections, an “idiom” is a recognized grammatical construction that is a rule simply because of tradition. The idiom constitutes the ultimate tautology: we say something a certain way because, well, that’s how we say it.

On the test, most of the idioms you will face involve preposition usage. Why do I listen “to” the radio instead of listen “at” the radio? We say “listen to” because that is how English speakers have said it for hundreds of years. We like it that way, and we are not willing to change.

For some test-takers, idiom errors can be the easiest to spot on the exam. To these test-takers, an idiom error sticks out like a sore thumb. When they read something like “listen at the radio,” they hear dissonance. The only way to restore grammatical harmony is to replace the grating “at” with the soothing “to.” Balance is restored.

English as second language

Not everybody thinks this way. For many who learned English as a second language, and even for those who have a purely logical--as opposed to intuitive--understanding of language, idiom errors are extremely difficult to detect. After all, there is no logical explanation for why we say “listen to” instead of “listen at.”...

### (GMAT 800)The function g(x) is defined for integers x such that if x

The function g(x) is defined for integers x such that if x is even, g(x) = x/2 and if x is odd, g(x) = x + 5. Given that g(g(g(g(g(x))))) = 19, how many possible values for x would satisfy this equation?

A. 1

B. 5

C. 7

D. 8

E. 11

Explanation:

The easiest way to approach this problem is probably to work backwards, at least until we see a pattern.

With g(...) = 19, then we can consider which operation applied to (...). If it was x/2, then (...)= 38. 38 is even so that is fair. If it was x + 5, then (...) was 14. 14 is even, so that operation would not have been applied.

On paper, you could make a tree, with 19 as the root, and 38 as the first node.

Next consider 38. 38 could have come from 76/2 or 33 + 5. Two possibilities give us two nodes branching from 38:

19 -> 38 -> 76, 33.

We can now observe the pattern that with an odd number, it must have come from an even, but an even could come from either of two numbers.

Therefore our 76 will branch into 2 numbers, and the 33 into just one.

33 -> 66

76 -> 73, 152..

We can represent this as shown here:

...

### When is a right time to start preparing for the GMAT?

**Categories**: GMAT Preparation

This is a question that goes in the mind of every test taker. When should I really start preparing? Well the answer depends on when do you want to attend the business school. GMAT scores are valid for a couple of years (5) and thus if you are not planning as soon as you give the GMAT then this is not a concern for you. This post is intended more for people who want to finish the process- from GMAT to attending a B school- in a single shot- meaning take the GMAT and then apply for the schools right away.

That needs some planning and you need to understand the application process of the B schools. Let me cover a little bit about the application process. Most of the schools have a couple of rounds in the application process- early bird, round 1, round 2, round 3 etc. Although there are many rounds, typically it is round 1 and round 2. You have to plan your applications around the round 1 and round 2 deadlines. I have visited many schools and talked with the Adcom of schools and typically there is much difference between your acceptance rate between round 1 and round 2. Round 3 become more competitive and you might want to avoid that. Now Round 1 deadlines for most of the schools are in the first week of October and Round 2 deadlines are in the first week of Jan. In order to come up with good applications and plan the schools visits and talking to professors, you will require about 3...

**Top 31 MBA Programs + Analysis of 24 Industries (United States)**We analyze the MBA Curriculum, Class Profile, Total Cost and Post-MBA Salary of

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**Pages: 327**

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