By Magoosh
- **Jun 8**, 09:00 AM

Understand the properties of the GMAT Quantitative section’s two favorite triangles!
The two special triangles are right triangles with special angles and side. Like all right triangles, they satisfy the Pythagorean Theorem. These two triangles are “special” because, with just a couple pieces of information, we can figure out...

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By Magoosh
- **Jun 7**, 09:00 AM

Two of the more confusing tenses in English are the present perfect and the past perfect. What makes them so is both describe continuous actions. To illustrate, let’s take a look at the following sentences:
1.) Last night, I walked my dog.
2.) I have walked Bucky...

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By Kaplan
- **Jun 6**, 22:00 PM

The New GMAT is Here.
Kaplan has the resources you need to succeed on the updated exam.
The GMAT has changed this month — and Kaplan is here to make sure you're ready to take on the new test. The updated GMAT features a slightly tweaked exam...

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By Magoosh
- **Jun 6**, 09:00 AM

Concision is one of the goals of parallel structure. Consider the following monstrosity of a sentence.
1a) After I get my next paycheck, I am seriously thinking about buying a jet ski, I am seriously thinking about treating my friends to dinner, and I am seriously...

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By Magoosh
- **Jun 5**, 09:00 AM

“I don’t know if you will find this post helpful”
Do you spot the error in the preceding sentence? This error is common in casual spoken English, but it will cost you on the GMAT Sentence Correction. In that sentence, the word “if” is incorrect: it...

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By Magoosh
- **Jun 4**, 09:00 AM

The 45º angle
Fact: All lines with slopes of 1 make 45º angles with both the x- and y-axes.
Conversely, if a line makes a 45º angles with either the x- of y-axes, you know immediately its slope must be . This first fact is true, not only...

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By Magoosh
- **May 31**, 09:00 AM

You may remember this formula, one of the sleekest factoring tricks in all of algebra:
This formula, called “the difference of two squares” formula, is a favorite of standardized test writers. A simple enough pattern: see if you can detect where it shows up in the...

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By Magoosh
- **May 30**, 16:23 PM

Here’s a whirlwind tour of one of the most frequently tested sets of concepts on the GMAT Quantitative section. You don’t have to be an expert on statistics: a little goes a long way.
The Mean
The mean is just the ordinary average: add up all the items...

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By Magoosh
- **May 28**, 09:00 AM

The title of this post may seem facetious. After all, even the person most allergic to math, most traumatized by math, still remembers how to count! The GMAT, of course, generally will not ask you, for example, to count from one to seven. The GMAT...

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By Magoosh
- **May 23**, 09:00 AM

Think about what distinguishes an effective manager from a pencil-pusher. The dutiful pencil-pusher can verify: A is a fact, B is a fact, and C is a fact. The effective manager can say, well, if we know A & B & C, it would not...

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