By gmatpill staff
- **Jul 6**, 19:32 PM

Can you answer this by reading only the first 3 words of each answer choice?
Recently documented examples of neurogenesis, the production of new brain cells, include the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that learn new...

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By dzyubam
- **Jul 6**, 02:00 AM

Math (DS)
and are prime integers. What is ?
1. is a prime integer
2.
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Combinations VS Permutations? Come listen to GMATPill explain what you need to know about nCr and nPr formulas in these...

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By VeritasPrep
- **Jul 5**, 14:52 PM

Of all the question types on the GMAT, Sentence Correction may seem the most arbitrary to prospective examinees. Math we get: nearly all MBA graduates will have to make decisions using numbers and nearly all MBA programs require coursework in areas like...

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By Kaplan
- **Jul 5**, 07:00 AM

Many GMAT preppers struggle with Sentence Correction. Probably most reading this post have some trouble with it. But why should that be? Presumably everyone reading this speaks English.
That’s the key to the puzzle right there. We all speak...

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By dzyubam
- **Jul 5**, 02:00 AM

Math (DS)
The bowl contains chips of red and green color and no chips of any other color. If two chips are drawn from the basket at random without replacement, what is the probability that both chips will be green?
1. 20% of all chips in the...

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By dzyubam
- **Jun 30**, 02:00 AM

Math (PS)
If equation encloses a certain region on the coordinate plane, what is the area of this region?
(A) 20
(B) 50
(C) 100
(D) 200
(E) 400
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By dzyubam
- **Jun 29**, 02:00 AM

Math (PS)
Jack can complete the task in 8 hours. Tom can complete the task in 12 hours. If Jack works on the task alone for 4 hours and then Tom starts to help him, how many hours in total will Jack have worked by the...

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By Knewton
- **Jun 27**, 09:00 AM

In the first post of our What to Memorize for the GMAT Verbal” series, we covered the business and logic vocabulary you should know for the test.
Next up: grammar rules.
Like the SAT and other standardized tests, the GMAT includes a "sentence correction" section. Unlike the...

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By Kaplan
- **Jun 27**, 08:00 AM

The majority of grammatical errors that appear in the sentence correction questions on the GMAT fall into six categories. Today’s question focuses on verb errors; when a verb appears in a sentence correction problem, make sure it is correct in both tense and number.
Problem:
Wolfgang...

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By dzyubam
- **Jun 24**, 03:30 AM

Math (PS)
How many integers between 18 and 70 inclusive are divisible by either 7 or 9 but not both?
(A) 11
(B) 12
(C) 13
(D) 14
(E) 15
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