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GMAT Idiom: because vs. because of

By - Dec 19, 09:22 AM   Comments [1]

First, a practice GMAT Sentence Correction question: 1) Because of Elnath Industries posting a second consecutive quarter of losses, its stocks tumbled 20% in the last three days. Because of Elnath Industries posting Because of Elnath Industries having posted Because Elnath Industries posting Because Elnath Industries posted Because Elnath Industries had been posting Because By...

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Doubling and Halving Trick for GMAT Math

By - Dec 17, 09:03 AM   Comments [0]

Learn one of the handiest tricks for math without a calculator!   Without a calculator, what is 1. 35 x 12? 2. 150 x 36? 3. 125 x 84? On the GMAT, you don’t get a calculator. With the doubling and halving trick, all of these become much easier.   Thinking about multiplication Every positive integer...

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GMAT Math: Midpoints and Parallel vs. Perpendicular lines

By - Dec 12, 09:00 AM   Comments [0]

First, a few practice questions. 1) Line A has the equation 3x + y = 7.  Which of the following lines is perpendicular to Line A? y = 3x + 4 y = –3x – 6 y = (1/3)x – 1 y = (–1/3)x + 2 y = (–7/3)x – 5 2)...

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GMAT Math: Calculating Combinations

By - Dec 10, 09:01 AM   Comments [0]

First, a few practice questions.  Remember --- no calculator! 1) A radio station has to choose three days of the seven in a week to broadcast a certain program, and that set will repeat each week.  The program can be broadcast equally on any of the seven...

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GMAT Grammar: Appositive Phrases

By - Dec 7, 09:03 AM   Comments [0]

Friends, Romans, countrymen: it is time to learn about appositive phrases!  But first, a practice sentence. 1. Being America's national bird, the Bald Eagle has little natural predators like the Great Horned Owl, and their population dwindling to almost nothing up to the point of DDT being...

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GMAT Math: Lines & Slope in the x-y plane

By - Dec 3, 09:01 AM   Comments [0]

Here are a set of practice GMAT questions about the Cartesian plane. 1) What is the equation of the line that goes through (–2, 3) and (5, –4)? y = –x + 1 y = x + 5 y = –3x/7 + 15/7 y = –4x/3 + 1/3 y = 9x/5...

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The –ing Form of a Verb

By - Nov 30, 09:11 AM   Comments [0]

First, a practice GMAT Sentence Correction question: 1) Extracting pure aluminum from bauxite and other ores using the Hall-Héroult process, with a vast amount of electrical energy separating the element from aluminum oxide, making aluminum an energy-dense resource with a huge carbon footprint. using the Hall-Héroult process, with a...

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GMAT Integrated Reasoning: Correlation and Trend Lines in Scatterplots

By - Nov 28, 09:00 AM   Comments [0]

One reason we graph data in a scatterplot is because we are looking for patterns.  The simplest of all possible patterns to find on a scatterplot is a straight line pattern.   Correlation When the points on a scatterplot lie more or less in a straight-ish line, that is called correlation. ...

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GMAT Grammar: Gerunds and Gerund Phrases

By - Nov 26, 09:00 AM   Comments [0]

On the GMAT Sentence Correction, the –ing form of a verb will sometimes act as part of the main verb: in this case, it is part of one of the Progressive Tenses of a verb.  Sometimes the –ing form of a verb will modify a noun: in...

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Peterson’s Master the GMAT 2013 Book Review

By - Nov 23, 09:00 AM   Comments [2]

Overview If you are starting your studying from Square One, and someone gives you this book for free, then it could serve as a rudimentary start.  Don't spend any money on this book, and for heaven's sake, do not make this book the sole basis for...

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