GMAC has recently published a brand-new version of the GMAT Official Guide. This is in fact the 14th edition of the GMAT OG, but that’s not what GMAC is calling it. They are calling it: The Official GMAT Guide 2015. How does this differ from the OG13? The printed copy = virtually identical The […]

#### About Mike

Mike McGarry is a Content Developer for Magoosh with over 20 years of teaching experience and a BS in Physics and an MA in Religion, both from Harvard. He enjoys hitting foosballs into orbit, and despite having no obvious cranial deficiency, he insists on rooting for the NY Mets. Follow him on Google+!## Lower on the Real GMAT than on Practice Tests

This is a scenario I have seen countless times in the forums. Some student has been preparing for months, diligently doing practice questions and taking practice GMATs (whether GMAT Prep or some other practice tests). The student felt the scores on the practice GMAT were either acceptable or pretty good. Then the student sits for […]

## Circle problems on the GMAT

Here are eight practice problems involving circles. The difficulty of these problems ranges from medium to very challenging. 1) In the diagram above, O is the center of the circle and angle AOB = 144º. What is the area of the circle? Statement #1: The area of sector AOB is 40% of the area of […]

## Canceling your GMAT Score

One of the many options you have at the end of your official GMAT is to cancel your score. As with everything else associated with the GMAT, it is a very good idea to think this through strategically and thoroughly, so that you are already in a good position to decide when you are presented […]

## Asking Excellent Questions

Success on the GMAT depends on many skills, and one skill that can help a student make enormous progress is the skill of asking excellent questions. In order to discuss this skill, first let’s look at a relatively straightforward practice problem. 14 26 28 32 38 I will show a full solution at the bottom […]

## Practice Problems on Powers and Roots

Here are ten reasonably challenging problems on powers and roots. Solutions follow the problems. Remember, no calculator! Statement #1: x < 1 Statement #2: x > –1 4 8 14 28 42 5) If A is an integer, what is the value of A? 11 30 45 75 225 Powers & roots This is […]

## Compound Subjects & Additive Phrases

First, four SC questions exploring this theme. 1) Neither the late 18th century composers, such as Mozart or Haydn, nor Beethoven, as well as Schubert in the early 19th century, were known to compose in the suite format, so popularly in the Baroque period. (A) were known to compose (B) were known in composing (C) […]

## GMAT Practice Questions with Fractions and Decimals

Here are ten problems on fractions and decimals, some of which are quite challenging. Remember, no calculator! 0.1 1 10 100 1000 6) Suppose you have access to a large vat of distilled water, several gallons large. You have two precise measuring pipettes, one to measure exactly 1/3 of an ounce and one to measure […]

## More on Diction

Diction is one of the eight major areas of GMAT Sentence Correction. Here are six new questions to practice on this topic. 1) The team of research scientists will not know whether the procedure for reversing damage to individual genes was successful if the scientists do not get access to the advanced optical technology at the […]

## Nested Grammatical Structures on the GMAT Sentence Correction

First, three challenging GMAT Sentence Correction practice problems. 1) Cosimo de’ Medici, a great patron of the arts, sponsoring two of Donatello most famous works, statues of David and Judith, while supporting Brunelleschi to complete the dome of the cathedral of Santa Maria del Fiore, which is known to be “Duomo.” (A) Cosimo de’ Medici, […]

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