By dzyubam
- **Oct 24**, 02:00 AM

Math (PS)
John has 12 clients and he wants to use color coding to identify each client. If either a single color or a pair of two different colors can represent a client code, what is the minimum number of colors needed for the coding? Assume...

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By Knewton
- **Oct 22**, 08:56 AM

You may have heard that the GMAT is no longer testing idioms. You also may have heard that the first 10 questions on the GMAT are the most important. You also may have heard that Lindsey Lohan is great at Data Sufficiency.
Why...

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By dzyubam
- **Oct 21**, 02:00 AM

Math (DS)
Is an integer?
1.
2.
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By dzyubam
- **Oct 20**, 02:00 AM

Math (PS)
A perfect number is defined as one for which the sum of all the unique factors less the number itself equals to the number. For instance, 6 is a perfect number, because the factors of 6 (apart from 6 itself) are 1, 2 and...

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

Math (DS)
Is ?
1.
2.
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By Knewton
- **Oct 18**, 13:39 PM

I want to take a moment to address some common confusion about the Analytical Writing Assessment (AWA) portion of the GMAT exam. As many of you inveterate students know, the AWA portion involves two essays, and you get a maximum of 30...

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

Math (DS)
Is integer odd?
1. is odd
2. is odd
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By dzyubam
- **Oct 17**, 02:00 AM

Math (PS)
A soccer coach riding his bike at 24 km/h reaches his office 5 minutes late. Had he traveled 25% faster, he would have reached the office 4 minutes earlier than the scheduled time. How far is his office from his house?
(A) 18 km
(B) 24...

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By dzyubam
- **Oct 14**, 02:00 AM

Math (PS)
What is the last digit of the following number ?
(A) 6
(B) 5
(C) 2
(D) 1
(E) 0
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By dzyubam
- **Oct 13**, 02:00 AM

Math (PS)
6 students in a group study different languages as specified:
* Russian: 4
* Ukrainian: 3
* Hebrew: 2
Each student studies at least 1 language. If it is also known that exactly 3 students study exactly 2 languages, how many students are studying all three languages?
(A) 0
(B)...

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