By akkane
- **Jan 15**, 02:00 AM

Math (PS)
4 professors and 6 students are being considered for membership on a supervisory committee which must consist of 3 people. In how many ways can this committee be formed if it has to include at least 1 professor?
(A) 36
(B) 60
(C) 72
(D) 80
(E) 100
Question Discussion...

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By Magoosh
- **Jan 14**, 09:00 AM

The Pythagorean Theorem is one of the most remarkable theorems in all of mathematics. It has a treasure trove of ramification up its sleeve, any one of which could provide you with invaluable help on the GMAT Quantitative section. For example, consider this practice problem.
1) Consider the...

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By akkane
- **Jan 14**, 02:00 AM

Math (PS)
Which of the following is closest to ?
(A) 1.997
(B) 1.998
(C) 1.999
(D) 2.000
(E) 2.001
Question Discussion & Explanation
Correct Answer - C - (click and drag your mouse to see the answer)
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By Magoosh
- **Jan 11**, 09:00 AM

In the first post in this series, I spoke about the AND rule and the OR rule in probability. Now, we will focus on probability question involve the words "at least." First, some practice of this genre.
Set #1 = {A, B, C, D, E}
Set #2 = {K, L, M,...

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By akkane
- **Jan 11**, 02:00 AM

Math (DS)
For any numbers and , #. If #, which of the following cannot be the value of y?
A. -2
B. -1
C. 0
D. 1
E. 2
Question Discussion & Explanation
Correct Answer - B - (click and drag your mouse to see the answer)
GMAT...

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By akkane
- **Jan 10**, 02:00 AM

Math (DS)
What is the value of ?
1.
2.
(click and drag your mouse to see the answer)
Question Discussion & Explanation
Correct Answer - C -
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By akkane
- **Jan 9**, 13:17 PM

Math (PS)
Three secretaries working together can type 36 pages of text in half an hour. If the typing speeds of the secretaries are in a 4:3:2 ratio, how long will it take the slowest-typing secretary working alone to type 52 pages of text?
(A) 1 hour...

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By Magoosh
- **Jan 9**, 09:00 AM

Prepositions in English display a powerful diversity of uses. In the previous preposition article, we talked about the proposition "to". Here, we will look, at the preposition "with."
The preposition "with"
The word "with" is a preposition. This means, it must be followed by a noun --- or...

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By akkane
- **Jan 8**, 02:00 AM

Math (PS)
Set consists of all points such that . If point is selected from set at random, what is the probability that ?
(A)
(B)
(C)
(D)
(E)
Question Discussion & Explanation
Correct Answer - A - (click and drag your...

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By Magoosh
- **Jan 7**, 09:00 AM

First, some practice questions. The scenario below is relevant to questions #1-#3.
There are two sets of letters, and you are going to pick exactly one letter from each set.
Set #1 = {A, B, C, D, E}
Set #2 = {K, L, M, N, O, P}
1) What...

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