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What percentage of his bills did Stanley pay before their
This topic have been merged with: http://gmatclub.com/forum/topic-152272.html
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Simplification
Please answer this question:The sum of the first 40 terms and 36terms of the series:1/2+1/3-1/4-1/2-1/3+1/4+1/2+1/3-1/4
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A committee of four is to be chosen from seven employees for
A committee of four is to be chosen from seven employees for a special project at ACME Corporation. Two of the seven employees are unwilling to work with each other. How many committees are possible if...
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Math Flashcards
Magoosh has just launched a free new product to help you learn math for the GMAT. It's our Math Flashcards App. See: https://gmat.magoosh.com/flashcards/mathDownload this on your mobile device, and you...
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What is the probability of getting exactly three heads on
What is the probability of getting exactly three heads on five flips of a fair coin?(A) 1/32(B) 3/32(C) 1/4(D) 5/16(E) 1/2I am looking for a method better than counting...Consider if the Q had 10 coin...
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How many different anagrams can you make for the word MATHEM
How many different anagrams can you make for the word MATHEMATICS?I donot have any options...but the correct answer here is 8!/2!I don't understand how?Should it not be 11!/(2!*2!*2!)
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General Divisibility Rule for any Number Ending 1, 3, 7 or 9
This was discovered by me while I was studying divisibility rules. This is true for any number ending with 1, 3, 7 or 9.We have a number P which is divided in XY where Y is units digit and X is rest of...
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If there are 4 seats and two students, in how many ways can
If there are 4 seats and two students, in how many ways can they be seated?A. 12B. 6C. 8D. 16E. 10
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ABCDE is a regular polygon of side 8 cm. What is the length
ABCDE is a regular polygon of side 8 cm. What is the length of diagonal AC(in cm)?A. 2(2+\sqrt{5})B. 4(2+\sqrt{3})C. 4(1+\sqrt{5})D. \frac{16}{\sqrt{3}}E. 8(\sqrt{5}-1)
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If x and y are both prime, is xy = 323?
If x and y are both prime, is xy = 323? (1) x is the first prime after 18. (2) y is the last prime before 180.
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Suppose the mean of 30 numbers is 520. If 20 of these number
Suppose the mean of 30 numbers is 520. If 20 of these numbers are each increased by 12, and remaining numbers are decreased by 6, then the mean of the new set of numbers is:A) 4860B) 5060C) 5260D)...
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There are x people and y chairs in a room where x and y are
There are x people and y chairs in a room where x and y are positive prime numbers. How many ways can the x people be seated in the y chairs (assuming that each chair can seat exactly one person)? (1)...
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Solving Quadratic Inequalities: Graphic Approach
Solving Quadratic Inequalities: Graphic ApproachSay we need to find the ranges of x for x^2-4x+3<0. x^2-4x+3=0 is the graph of a parabola and it look likes this:Intersection points are the roots of...
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10 soldiers are standing in a single row. 3 soldiers are
10 soldiers are standing in a single row. 3 soldiers are selected for a mission such that there are at least 2 soldiers between any 2 of the soldiers selected. How many ways can this be done?A. 10C3B....
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quant booklet
I saw a post somewhere here linking to a packet of about 150 (or maybe it was 450) gmat questions from a guy in South America for $100 or 150 or so. Supposedly hard questions. Whoever posted said you...
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General question - Permutation vs. Combination
Hi All,I'm getting a little flustered when I try to distinguish between Combination and Permutation. I know the fundamental formulas and what they are *trying* to say -- combination = unordered...
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At a certain conference, 72% of the attendees registered at
Why is this question locked?http://gmatclub.com/forum/at-a-certain-conference-72-of-the-attendees-registered-at-139035.html#p1257947I agree with many others in the questions thread that it has not been...
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Find the ratio of areas of the Triangle ABC and ADB
Find the ratio of areas of the Triangle ADB and ABCIf, BD:DC= 3:51.3:52.9:253.3:84.5:95.9:16Kudos If you liked the Question
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In the x-y plane, point (p, q) is a lattice point if both p
In the x-y plane, point (p, q) is a lattice point if both p and q are integers. Circle C has a center at (2, 1) and a radius of 6. Some points, such as the center (2, 1), are inside the circle, but a...
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