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Mathematics, physics, and chemistry books are stored on a li
Mathematics, physics, and chemistry books are stored on a library shelf that can accommodate 25 books. Currently, 20% of the shelf spots remain empty. There are twice as many mathematics books as...
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An exam consists of 8 true/false questions. Brian forgets to
An exam consists of 8 true/false questions. Brian forgets to study, so he must guess blindly on each question. If any score above 70% is a passing grade, what is the probability that Brian passes?A)...
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If the infinite sum 1/2^1+1/2^2+1/2^3+1/2^4+...=1, what is
If the infinite sum 1/2^1+1/2^2+1/2^3+1/2^4+...=1, what is the value of the infinite sum 1/2^1+2/2^22+3/2^3+4/2^4+....?A) 1B) 2C) 3D) E) Infinite
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A circular region centered at C is inscribed in equilateral
Attachment:Triangle.pngA circular region centered at C is inscribed in equilateral triangle ABC above. If the area of ABC is 12, then what is the area of the shaded region?A. 6-3B. 6-3C. 12-3D. 12-3E. 3+3
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The scoring system in a certain football competition goes as
This topic have been merged with: http://gmatclub.com/forum/topic-74103.html
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If a and b are integers, what is the value of b ?
If a and b are integers, what is the value of b ?(1) ab = 32(2) a^4 = b
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Exponents and Roots on the GMAT: Tips and hints
Exponents and Roots: Tips and hints ! This post is a part of the Quant Tips and Hints by Topic Directory focusing on Quant topics and providing examples of how to approach them. Most of the questions...
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Special Numbers and Sequences Problems
SPECIAL NUMBERS AND SEQUENCES ! This post is a part of the Special Questions Directory focusing on Quant topics traditionally neglected and not covered by conventional sources but still tested on the...
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Is integer y is divisible by 24?
Is integer y is divisible by 24?1) y is divisible by 6.2) y is divisible by 4.
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What is 35 percent of a^b?
What is 35 percent of a^b?(1) b is 200 percent of a(2) 50 percent of b is a
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I am breaking down.
first of all I understand everyone studies differently. But I just can't figure this out anymore.I used to think that if I take every question that I got wrong and write a 5 page explanation on how...
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If cube root of square root of x equals x/5, then x could eq
Attachment:cube root of square root.JPGFor the OE to this question, as well as a bank of other challenging problems on Powers & Roots, see: http://magoosh.com/gmat/2014/practice-p ... and-roots/Mike
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Is |xy|>x^2y^2
Q. Is |xy|>x^{2}y^{2}1.0<x^{2}<1/42. 0<y^{2}<1/9[Reveal] Spoiler: In the answer explanation, the question is boiled down to is x^2 *y^2< 1..Where as I solved it by saying that since...
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In the "Mashburn" pharmaceutical company there are two
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If n is an integer between 1 and 96 (inclusive), what is the
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Which of the following is between 13/17 and 17/21?
Which of the following is between 13/17 and 17/21?A. 1/3B. 3/8C. 1/2D. 5/8E. 7/9Hi, I know this is simple question. I want to know the fastest way to find the answer, please. Convert Fraction to Decimal?
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Nine family members: 5 grandchildren (3 brothers and 2 siste
New project from GMAT Club: Topic-wise questions with tips and hints!Nine family members: 5 grandchildren (3 brothers and 2 sisters) and their 4 grandparents are to be seated around a circular table....
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1 question at a time or 10 questions timed together?
How do you guys study OG?You take questions one by one, looking at explanations after each one and setting the timer for just 2 min? Or you take a bunch, like 10 questions?My biggest worry is that for...
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If f and g are both positive integers greater than 1
If f and g are both positive integers greater than 1 and g^f = g^{(3f-6)}, what is the value of fg ?(1) g^2 = 2g(2) g=2
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QR107: can you insert an inequality INTO an equation?
If I have an equation and an inequality - normally I would insert the equation into the inequality. Like this for example:x>yy=10hence x>10However, take a look at this problem here: Some sequence...
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