By dzyubam
- **May 4**, 02:00 AM

Math (DS)
How many distinct prime divisors does a positive integer have?
1. has one prime divisor
2. has one prime divisor
Question Discussion & Explanation
Correct Answer - C - (click and drag your mouse to see the answer)
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By dzyubam
- **May 1**, 02:00 AM

Math (DS)
15 computers in the corporate network are infected with virus. If every day several computers are arbitrarily selected for scanning, what is the probability that no computer containing virus will be scanned in the course of the next five days?
1. 10 computers are scanned...

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By Magoosh
- **Apr 30**, 09:00 AM

Learn the important distinction between "that" vs. "which" on GMAT Sentence Correction.
That vs. which? Restrictive vs. Non-restrictive
A restrictive modifier limits the conceivable scope of a general noun to a relevant subset. For example, consider the difference in the following two sentences:
1) I avoid dogs that appear...

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

Math (DS)
Among the first ten cyclists who crossed the finish-line, 4 were Italians and 8 represented Telefonica team. How many cyclists who represented Telefonica team and finished in the top ten were not Italians?
1. 2 Italians who finished in the top ten did not represent...

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By dzyubam
- **Apr 25**, 02:00 AM

Math (PS)
What is the unit's digit of ?
(A) 1
(B) 3
(C) 5
(D) 7
(E) 9
Question Discussion & Explanation
Correct Answer - E - (click and drag your mouse to see the answer)
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By dzyubam
- **Apr 24**, 02:00 AM

Math (DS)
If is a positive integer, is the number of its divisors smaller than ?
is defined as the smallest integer that is not less than .
1. is not a square of an integer
2. ...

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By dzyubam
- **Apr 19**, 02:00 AM

Math (PS)
Which of the following is closest to ?
(A) 0.50
(B) 0.89
(C) 0.98
(D) 1.02
(E) 1.05
Question Discussion & Explanation
Correct Answer - C - (click and drag your mouse to see the answer)
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By Knewton
- **Apr 18**, 22:48 PM

By Jen Rugani
Certain words are very commonly confused for each other; this is by design. Here’s a core content piece you’d find in our course.
The preposition among takes an object made up of more than two items, while the preposition between takes an object make up of exactly two items.
We...

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By dzyubam
- **Apr 18**, 02:00 AM

Math (PS)
If function satisfies for all , which of the following must be true?
(A)
(B)
(C)
(D)
(E)
Question Discussion & Explanation
Correct Answer - B - (click and drag your mouse to see the answer)
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By Magoosh
- **Apr 17**, 09:00 AM

Concision is a good thing on GMAT SC, but can you have too much of this good thing?
As a general rule on GMAT Sentence Correction (and in life!), wordy is bad. For example:
1) Buck Mulligan, who was a somewhat chubby person but who bore his weight with...

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