By akkane
- **Jan 1**, 02:00 AM

Math (PS)
Set consists of all prime integers less than 10. If two numbers are chosen form set at random, what is the probability that the product of these numbers will be greater than the product of the numbers which were not chosen?
(A)
(B)...

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By akkane
- **Dec 31**, 02:00 AM

Math (DS)
If vertices of a triangle have coordinates , what is the area of the triangle?
1.
2. angle at the vertex equals 90 degrees
Question Discussion & Explanation
Correct Answer - A - (click and drag your mouse to see the answer)
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By akkane
- **Dec 28**, 02:00 AM

Math (DS)
Is divisible by 24?
1. , , and are consecutive even integers
2. is divisible by 12
Question Discussion & Explanation
Correct Answer - A - (click and drag your mouse to see the answer)
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By akkane
- **Dec 27**, 02:00 AM

Math (PS)
How many zeros does end with?
(A) 20
(B) 24
(C) 25
(D) 30
(E) 32
Question Discussion & Explanation
Correct Answer - B - (click and drag your mouse to see the answer)
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By Magoosh
- **Dec 26**, 09:01 AM

Fact: according to all mathematical definitions, the number 1 is not a prime number
Primes
One definition of a prime number is: any number that has only two positive integer factors ---- itself and 1. The following are valid prime numbers.
2, 3, 5, 7, 11, 13, 17, 19, 23, 29...

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By akkane
- **Dec 26**, 02:00 AM

Math (PS)
Which of the following sets has the same standard deviation as set ?
(A)
(B)
(C)
(D)
(E)
Question Discussion & Explanation
Correct Answer - E - (click and drag your mouse to see the answer)
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By akkane
- **Dec 25**, 02:00 AM

Math (PS)
What is the ratio of the area of a TV screen with a diagonal of 18'' to that of a screen with a diagonal of 15''?
1. The ratio of width to length is the same for both screens.
2. The width of the 18''-screen is...

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By Magoosh
- **Dec 24**, 09:28 AM

Prepositions are perhaps the most versatile and powerful words in the English language. What English does with prepositions is notoriously hard for non-native speakers to learn. In this first "preposition idiom" article, we will look at the preposition "from."
The preposition "from"
The word "from" is a...

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By akkane
- **Dec 24**, 02:00 AM

Math (DS)
Does the curve intersect the axis?
1.
2.
Question Discussion & Explanation
Correct Answer - B - (click and drag your mouse to see the answer)
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By Magoosh
- **Dec 21**, 09:25 AM

First, a practice problem. Remember, no calculator.
I. 47/150
II. 111/330
III. 299/900
1) Rank those three in order from smallest to biggest.
I, II, III
I, III, II
II, I, III
II, III, I
III, I, II
Number sense
Many GMAT Quantitative Problems, like the foregoing one, test number sense. What is number sense? Number sense is a good...

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