Data Sufficiency (DS) | Re: Is x^3 > 0? (1) (x + y)(x – y) = 0 (2) x = |y|
AlisherChaman wrote:niks18 wrote:Bunuel wrote:Is x^3 > 0?(1) (x + y)(x – y) = 0 (2) x = |y| The question essentially asks is\(x>0\) i.e.positiveStatement 1 : implies\(x=-y\) or\(x=y\) . but we...
View ArticleProblem Solving (PS) | Re: A wall that is 12 feet wide and 10 feet high is to...
Area of the wall = 12*10=120 sq feetArea of the blackboard= 5*3=15 sq feetArea of the wall to be painted = 120-15=105 sq feetAns E
View ArticleData Sufficiency (DS) | Re: In the figure shown, quadrilateral ABCD is...
Ashokshiva wrote:Hi,A quadrilateral inside a cirlce is called a cyclic quadrilateral.And one of the properties of a cyclic quadrilateral is AB + CD = AD + BC (based on given fig.)So shouldn't A be the...
View ArticleProblem Solving (PS) | Re: What is the product of all the roots on the...
for x<2the equation becomes: \((x-2)^2 = (2-x)\)on solving: x=1 or x=2(not possible, since x<2)for x>2the equation can be rewritten as: \((x-2)^2 = (x-2)\)on solving: x=2(not possible, since...
View ArticleData Sufficiency (DS) | Re: If x is positive, is x > 4?
steilbergauf wrote:If x is positive, is x > 4?(1) (4-x)^2 < 1(2) (x-4)^2 < 1(1) (4-x)^2 < 1 Let x = 3.5.........(4-3.5)^2 < 1..........(1/2)^2 < 1.........Answer is NoLet x =...
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Problem Solving (PS) | What is the greatest number of 4 x 4 squares that can...
What is the greatest number of 4 x 4 squares that can be traced out along the existing line segments of the 8 x 8 checker board shown above?(A) 8 (B) 10 (C) 16(D) 25 (E) 36[Reveal] Spoiler: Attachment:...
View ArticlePS Archive | Re: Ratio
amanred wrote:Please replyRatio of volumes of three containers containing milk and water in ratio 2:1 ,4:1,1:2 respectively. If all three container are mixed find the ratio of milk and water...
View ArticleProblem Solving (PS) | Re: In the figure shown, ABCD is a rectangle. If AD =...
Easier way is that AD=6, DE =5, so according to triangle area formula, ab/2, 6*5/2=15; CSent from my SM-J120H using GMAT Club Forum mobile app
View ArticleProblem Solving (PS) | Re: If x and y are integers such that x > y, which of...
When X>Y, These are the possible casesX Y+ -+ 0+ +- -The question is asking CANNOT be positive, we will prove CAN be positive and eliminate that answer.I. y(y – x)If both are negative the result...
View ArticleProblem Solving (PS) | Re: (0.0036)(2.8) / (0.04)(0.1)(0.003) =
Hello from the GMAT Club BumpBot!Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think...
View ArticleProblem Solving (PS) | Re: Of 20 Adults, 5 belong to X, 7 belong to Y, and 9...
Ans is B20-None = 5+7+9-3-2x220-N=14N=6
View ArticleProblem Solving (PS) | Re: If n ≠ 0, which of the following must be greater...
If n ≠ 0, which of the following must be greater than n?I. 2nII. n^2III. 2 - nA. I onlyB. II onlyC. I and II onlyD. II and III onlyE. None If n ≠ 0, then n can be positive, negative or fraction. If we...
View ArticleQuantitative | Free 16-page PDF Guide -- Top 3 700+ GMAT Arithmetic Shortcuts
Hi GMATters,This was posted a while back but in case you missed it, this is a free 16-page guide detailing my favorite arithmetic shortcuts--let's face it, you're probably doing more calculation than...
View ArticleData Sufficiency (DS) | Re: Given that x and y are positive integers, is x...
VeritasPrepKarishma wrote:VeritasPrepKarishma wrote:If you have done a variety of questions, you have come across this concept somewhere before. The point is to recognize which concept I am talking...
View ArticleProblem Solving (PS) | Re: The expression x^(-1)/5^x is greatest for which of...
Bunuel wrote:The expression \(\frac{x^{(-1)}}{5^x}\) is greatest for which of the following values of x?A. 2B. 1C. 1/2D. –1E. –2 hilets think this way ..to maximize any fraction, we need to maximize...
View ArticleDS Archive | Re: If m is a positive odd integer between 2 and 30, then m is
Hello from the GMAT Club BumpBot!Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think...
View ArticleData Sufficiency (DS) | Re: The selling price of an article is equal to the...
Hello from the GMAT Club BumpBot!Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think...
View ArticleGMAT Club Tests | Re: M20-13
Bunuel wrote:Official Solution: The price of a house decreased by\(x\%\) from 1998 to 1999 and increased by\(y\%\) from 1999 to 2000. If the house cost\(M\) dollars in 2000, how much did it cost in...
View ArticlePS Archive | A toy factory manufactured
A toy factory manufactured a batch of electronic toys. If the toys were packed inboxes of 115 each, 13 boxes would not be filled completely. If the boys were packedin boxes of 65 each, 22 such boxes...
View ArticleProblem Solving (PS) | Last Sunday a certain store sold copies of Newspaper A...
You can use smart numbers here.Because P is a percentage it is best to pick 100 for the total number of hypothetical newspaper sales. This allows us to transform the percentages into real...
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