GMAT Problem Solving (PS) | Re: Which of the following CANNOT be the median...
AbuRashid wrote:Bunuel wrote:Praetorian wrote:Which of the following CANNOT be the median of the 3 positive integers x, y, and z?A. xB. zC. x+zD. x+z/2E. x+z/3 The median of a set with odd number of...
View ArticleGMAT Problem Solving (PS) | Re: If a b and |a-b| = b-a, which of the...
Ahh - I forgot about that. Thanks!Zarrolou wrote:WholeLottaLove wrote:So, in other words, I.) |a-b| = b-aII.) b-a is positive because it is equal to an absolute valueIII.) b must be greater than a...
View ArticleGMAT Problem Solving (PS) | Re: If n = 20! + 17, then n is divisible by which...
anu1706 wrote:By completely divisible I mean to say that Remainder is Zero which in this case it is not!!But it is: 20!+17 divided by 17 yields the remainder of zero, that's what divisible means.
View ArticleGMAT Problem Solving (PS) | Re: |x+3| - |4-x| = |8+x|. How many solutions...
WholeLottaLove wrote:After reviewing the material in the link, I can't help but think that it is irrelevant whether it is ≤ or as long as there is only one ≤ or ≥ sign in each number less than x less...
View ArticleGMAT Problem Solving (PS) | Re: Michel is drawing 2 winning tickets from a...
kloklo wrote:The chance for James to win prize in the first ticket is 1/22, the chance to win in the second is 1/21. So the lowest possibility is 1/21x22, not 1/11x21. Could please you help me explain...
View ArticleGMAT Quantitative Section | Re: Help with a Mixture Problem
If 50% solution becomes 40% solution, then 40% solution must be equally weighted between 50% solution and 30% solution - i.e. \frac{1}{2} of 50% solution and \frac{1}{2} of 30% solution. If the...
View ArticleGMAT Problem Solving (PS) | Re: Area of Triangle
Bunuel wrote:[b]Note that as BE=DE the triangles BCE and CDE are congruent (all three sides are equal) --> \angle{BCE}=\angle{DCE}. So if we continue the line segment CE it will meet with the...
View ArticleGMAT Data Sufficiency (DS) | Diophantine Equations related Data Sufficiency.
Here is the method to never fail to answer correctly Diophantine-equations-related Data Sufficiency problems.1. First, be sure thatthe 2 variables must be non-negative integers or positive integers...
View ArticleGMAT Problem Solving (PS) | Re: In order to complete a reading assignment on...
Formula for Avg= Total/no. of units=> Total= Avg* no. of unitsGiven, Planned average reading=90 pages/day => Planned total pages for d days=90*d (in pages)Actual total pages = 75pages/day*(d-6)...
View ArticleGMAT Data Sufficiency (DS) | Re: What is the value of x?
shrive555 wrote:What is the value of x?(1) \sqrt{x^4} = 9(2) \sqrt{x^2}=-x Responding to apm:Quote:how to solve second statement? i did 2nd statement squaring on both sides then got same x^2 = x^2....
View ArticleGMAT Data Sufficiency (DS) | Re: x is an integer and x raised to any odd...
ykaiim wrote:x is an integer and x raised to any odd integer is greater than zero; is w - z greater than 5 times the quantity 7^(x-1)-5^x?(1) z < 25 and w=7^x(2) x = 4 Responding to a pm:What is...
View ArticleGMAT Club Tests | Re: GMAT Diagnostic Test Question 45
Dixon wrote:Is there a formula-based method for something like this? I solved it by calculating each weight individually, but wouldn't want to get stuck with an exam question that asks for weight of...
View ArticleGMAT Data Sufficiency (DS) | Re: The radii of two circles are 2 inches and 4...
Transcendentalist wrote:Bunuel wrote:atalpanditgmat wrote:The radii of two circles are 2 inches and 4 inches, respectively. What is the distance between their centres? (1) The two circles touch...
View ArticleGMAT Problem Solving (PS) | Re: Some part of a 50% solution of acid was...
Some part of a 50% solution of acid was replaced with an equal amount of 30% solution of acid. If, as a result, 40% solution of acid was obtained, what part of the original solution was replaced?...
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GMAT Problem Solving (PS) | Re: Area of Triangle
gmatfighter12 wrote:Bunuel wrote:Note that as BE=DE the triangles BCE and CDE are congruent (all three sides are equal) --> \angle{BCE}=\angle{DCE}. So if we continue the line segment CE it will...
View ArticleGMAT Data Sufficiency (DS) | Gave some numbers about money cost. Is the range...
Gave some numbers about money cost. Is the range of these numbers greater than $500?(1) The median is $1,000(2) Standard deviation is $500I have extracted this question from a question bank that i...
View ArticleGMAT Data Sufficiency (DS) | Re: What is the value of a two-digit positive...
Great Explanation Mau totally missed the case of 60...samara15000 wrote:Can anyone explain the answer pls. I am finding it difficult.Refer to bunuel's post on this thread it explains the concept tested...
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GMAT Problem Solving (PS) | Re: In blackjack, each card is worth a certain...
I play blackjack so i skipped the explanation part
View ArticleGMAT Problem Solving (PS) | Re: If x = 10^10, (x^2 + 2x + 7)(3x^2 - 10x + 2)...
Thanks BunuelI started with finding the roots & trying to simplify, but ended up nowhere.
View ArticleGMAT Data Sufficiency (DS) | Re: If vmt≠0, is v^2*m^3*t^(-4)>0?
Bumping for review and further discussion*. Get a kudos point for analternative solution!*New project from GMAT Club!!! CheckHERE Theory on Inequalities:...
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