When I make an error, I get excited. Seriously—you should be excited when you make errors, too. I know that I’m about to learn something and get better, and that’s definitely worth getting excited!

Errors can come in several different forms: careless errors, content errors, and technique errors. We’re going to discuss something critical today: how to learn from your errors so that you don’t continue to make the same mistakes over and over again. First, let’s define these different error types. Read more

While problems with charts and tables can look intimidating, it is often the case that the questions simply require you to be able to 1) read carefully, 2) do arithmetic, and 3) convert fractions to percents, and calculate percent change. That’s it.

Try this Data Interpretation problem set with five questions.

Ninth-Grade Students at Millbrook High School

1. What fraction of the girls are enrolled in Spanish?
2. What fraction of the students are boys who are enrolled in Spanish?
3. What is the ratio of 9^th grade girls not enrolled in Spanish to all 9^th grade students at Millbrook Middle School?
4. If x% more students are not enrolled in Spanish than are enrolled in Spanish, what is x?
5. If 2 of the boys not enrolled in Spanish decided to enroll in Spanish, and then 8 new girls and 7 new boys enrolled in the 9^th grade at Millbrook Middle School and also in Spanish, what percent of 9^th grade students at Millbrook would then be taking Spanish?

Record your answers on paper before continuing!

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Each week, we post a new Challenge Problem for you to attempt. If you submit the correct answer, you will be entered into that week’s drawing for two free Manhattan Prep GRE Strategy Guides.

In 2012, attendance at an annual sporting event was 5% greater than it was in 2011 and 20% greater than it was in 2010. What was the percent increase in attendance from 2010 to 2011?

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Applying to business school? Many schools, including Stanford, Harvard, and Wharton, accept either the GMAT or the GRE. Which one should you take, and how can you decide? We’ve talked about this topic before, but we’re revisiting it because the launch of the Next Generation GMAT is imminent (there’s a good GRE word for you).

There are two aspects to consider: whether you would have a significant scoring advantage on one test versus the other, and whether certain schools have shown a preference for one exam over the other. We’re going to address the first aspect in this article; we’ll leave the second consideration for the admissions consultants.

Both exams consist of multiple-choice quantitative and verbal sections, as well as an essay-writing section. The GMAT also includes an Integrated Reasoning section. Let’s take a look at the structures of the tests and discuss what is tested.

Quant

The two exams test high-school level math (including number properties, algebra, geometry, and statistics) and have some similar question types. Both tests have standard problem-solving questions “ the basic math multiple choice questions that appear on any multiple-choice math test. The tests also have questions that combine elements of quant content and mathematical logic; on the GMAT, these are called Data Sufficiency and, on the GRE, these are called Quantitative Comparisons. Within its quant section, the GRE also includes a small number of Data Interpretation questions, which include a table or graph, as well as some pick all that apply and fill in the blank question formats.

The general consensus is that GRE quant is more straightforward than GMAT quant; I’ve taken both exams and agree. If math is your weaker area, then put a plus in the GRE column. (This is especially true if we also take into account the new Integrated Reasoning section on the GMAT; more on this topic down below.)

Verbal

The Reading Comprehension questions on the GRE correspond fairly well to the Reading Comprehension and Critical Reasoning questions on the GMAT. The rest of the GMAT verbal section, though, tests grammar (via sentence correction questions) while the GRE tests vocabulary (via text completion and sentence equivalence questions).

If verbal in general is your weaker area, then decide based on this. Is your grammar great? The GMAT may be easier for you. Is your vocabulary so awesome that your friends regard you as their personal dictionary? The GRE is your test.

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Each week, we post a new Challenge Problem for you to attempt. If you submit the correct answer, you will be entered into that week’s drawing for two free Manhattan Prep GRE Strategy Guides.

Rebecca had 288 Facebook friends, and noticed that an equal number of these friends had birthdays in each of the twelve months of the year. Then, Rebecca approved many friend requests at once. After doing so, the number of Rebecca’s friends with birthdays in the last quarter of the year increased by 25%, the number of friends with birthdays in each month beginning with J increased by one-third, the number of people with birthdays in February was increased by 12.5%, the number of people with birthdays in March became of the new number of people with birthdays in February, the number of people with birthdays in April became five less than 75% of the new number of people with birthdays in February and March combined, the number of people with birthdays in May increased by 1, and the number of people with birthdays in August became one less than 20% greater than the new number of people with birthdays in May. Finally, September’s total increased to 6% less than one more than the new total for the month with the largest number of birthdays. Assuming no one de-friended her, after approving all her friend requests, how many Facebook friends did Rebecca then have?

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Here are two hilarious — but mathematically GRE-like — problems written by Manhattan GRE instructor Tommy Wallach.

As on the real GRE, both questions use the same set of two charts. The first question is multiple choice; the second requires you to enter your own answer. You may use a calculator.

1. If the five categories of irony were placed in the slice appropriate to them in the first chart, approximately what would be the internal angle of the slice labeled nostalgia, in degrees?

1. 7
2. 21
3. 25
4. 57
5. 70

2. If a hipster’s priorities were expressed as a percentage of 500 priority points, what would be the point difference between knowledge of craft beers and ironic attitude, rounded to the nearest tenth?

Give these problems a shot before reading further.

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Mnemonics or mnemonic devices are memory tricks to help us remember things like vocabulary words. However, many mnemonics are pretty cheesy — often involving the kind of jokes some people call “groaners.” For instance…

To abase is “to reduce or lower, as in rank, office, reputation, or estimation; humble; degrade.”

Here’s the mnemonic:

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This hilarious graphic has been making the rounds on Facebook:

The Credible Hulk! This, of course, is a play on the Incredible Hulk. But what does incredible really mean?

Today, we often use incredible to mean “amazing, awesome!” However, the actual meaning of incredible is not believable. For instance:

No one would have questioned the employee’s sick day if he hadn’t told such _________ story about an exotic illness that sent him to the hospital near-death at 8:30 a.m., and yet was cured completely by evening.

Select two answers.

an incredible a fabulous an incredulous a verisimilar a gullible a chintzy

(Note: When you see six answer choices and square checkboxes, that’s a clue that this is a GRE Sentence Equivalence problem, to which there will always be two correct answers.)

Of course, one of the answers to this question is incredible. But what about the other one?

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Take a sneak peek into Manhattan Prep’s 500 Essential Words and 500 Advanced Words GRE flashcard sets!

Why does propitiate mean conciliate, appease, but propitious means lucky? You’ll have to ask some superstitious Romans (or just read our flashcards). Check it out:

Want to adopt 1,000 new flashcards? Visit our store here.

In recent articles, we’ve discussed how to analyze practice problems when we’re studying, and we’ve also talked about how to read RC passages. (If you haven’t already read those articles, you may want to do so before you continue with this article.)

Today, we’re going to do a question from the Language Power passage that we reviewed in a previous article, and we’re going to analyze that question using the how to analyze a problem process. If you haven’t already read this passage (or if it has been a while since you read it), go take a look at the Language Power article first (linked above). Give yourself roughly 3 minutes to read through the passage and take notes, then read the rest of that article.

Okay, finally, you can get started on this article! Below is the full text of the passage followed by the question.

Sarah Meyers McGinty, in her new book Power Talk: Using Language to Build Authority and Influence, argues that while the simple lingual act of declaring power does not help a powerless person gain influence, well-considered linguistic techniques and maneuvers do. McGinty does not dispute the importance of factors such as expertise and ability in determining stature, but argues persuasively that these power determinants amount to little in a person unable to communicate effectively. Many surveys have shown that the ability to communicate effectively is the characteristic judged by managers to be most critical in determining promotability in the workplace or an academic environment.

McGinty divides speech into two categories: “language from the center” and “language from the edge”. In McGinty’s words, “Language from the center makes a speaker sound like a leader. McGinty suggests that language from the center is not only for those in high positions of power, but also for those of lower ranks who wish to gain more power and credibility. A speaker using language from the center exhibits the following characteristics: he directs rather than responds; he makes statements rather than asks questions; he contradicts, argues, and disagrees; he uses his experience persuasively; and he maintains an air of impersonality in the workplace. McGinty suggests that the use of language from the center can alter or create a new balance of power. These assertions are supported by studies that show that people accept leadership from those they perceive to be experts.

Language from the edge stands in stark contrast to language from the center. Language from the edge is careful, exploratory, and inquiring. It is inclusive, deferential, and collaborative. A speaker using language from the edge responds rather than directs; asks questions; strives to make others feel heard and protected; and avoids argument. The main purpose of language from the center is to claim authority for a speaker, while language from the edge strives to build consensus and trust. McGinty argues that true power comes from a deep understanding of when to use which style and the ability to use both as necessary.

What distinguishes McGinty’s discussion of effective communication is her focus on communication skills as a way of gaining power; this contrasts with most workplace communication theory, which focuses on communication skills as a way of preventing misunderstandings, avoiding conflict, and fostering interpersonal relationships. McGinty, however, holds that language not only helps maintain relationships but also lends authority. According to Power Talk, effective communication skill is an understanding of how situation shapes speech and how speech shapes situation and an understanding of how speech styles and the forces that affect those styles . . . can build your authority, and enhance your credibility and impact.

And here’s the problem; give yourself about 1 minute to answer it.

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