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Problem Solving (PS) | Re: In the figure above, PQRS and PRTU are squares....
Bunuel wrote:In the figure above, PQRS and PRTU are squares. The ratio (perimeter of PQRS/(perimeter of PRTU) =(A) 1/√2 (B) 1/2 (C) 2/3(D) 3/√2 (E) 1/4[Reveal] Spoiler: Assign numbers Side and...
View ArticleProblem Solving (PS) | If the perimeter of a rectangular garden plot is 80...
Bunuel wrote:If the perimeter of a rectangular garden plot is 80 meters, which of the following could be the length of one of its sides?I. 30 meters II. 40 meters III. 50 meters(A) I only (B) II only...
View ArticleData Sufficiency (DS) | Re: A, B, C, and D are points on a line in that...
CSent from my iPhone using GMAT Club Forum
View ArticleProblem Solving (PS) | Re: xy and yx are reversed two digit positive...
C. x and y are place holder values. Let the first number be A and the second number be B. A = 10x+y, B= 10y+x(for example 57 = 10(5) +7(1), 957 = 100(9)+10(5)+7(1))A-B = 10x+y-(10y+x) = 10x+y-10y-x =...
View ArticleData Sufficiency (DS) | Re: If y is a positive integer, what is the units...
CSt1 says y can be an integer with unit digit 9 or 1St2 clearly not sufficient. Combining we can conclude the unit digit is 9. Hence CSent from my iPhone using GMAT Club Forum
View ArticleProblem Solving (PS) | Re: A photographer will arrange 6 people of 6...
Does this perchance use somewhat of the same logic as the question that ask something along the lines of "how many combinations have Lisa to the right of George"? In those cases, you simply halve the...
View ArticleData Sufficiency (DS) | Re: If x > 1, is positive integer b a factor of...
niks18 wrote:Bunuel wrote:If x > 1, is positive integer b a factor of positive integer a?(1) \(x^{(a + b)} = x^{(ab)}\)(2) \(x^{(\frac{a}{b})} = x^{(\frac{a}{2})}\) The question stem implies that...
View ArticleData Sufficiency (DS) | Re: Is the mean of set Q greater than its median
saswata4s wrote:Is the mean of set Q greater than its median?(1) All the elements in Q are consecutive multiples of 2.(2) The sum of all the elements in Q is 100. Mean is the average and median is the...
View ArticleProblem Solving (PS) | Re: At a certain school, 40 percent of the students...
abhimahna wrote:GMATPrepNow wrote: At a certain school, 40 percent of the students play both rugby and play chess. If 40 percent of the students who play rugby do not play chess, what percent of the...
View ArticleData 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 ArticleData Sufficiency (DS) | Re: On his trip from Alba to Benton, Julio drove the...
I did this by creating an R*T = D table and separated the two tripsLet d be distance in part A of the tripLet t be the time in part A of the tripLet D be total distanceLet T be total time Rate * Time...
View ArticleProblem Solving (PS) | Re: A hiker walking at a constant rate of 4 miles per...
I approached this by calculating how far ahead of the walker the biker is when he's waiting. This is calculated by: (Biker Speed - Walker Speed) * Time until biker stops to wait(20 - 4) * 6 = 16*4 =...
View ArticleGMAT Club Tests | Re: V10-15
I chose D as I thought it is the best choice among others. However, I still think that it is may be better if we say something like " if people do not lose weight then they did not do physical...
View ArticleProblem Solving (PS) | Re: What is the product of all the roots on the...
naman90 wrote: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...
View ArticleProblem Solving (PS) | Re: What is the number of multiples of 4 between 2^5...
brtboy wrote:If the question has the word Inclusive, looking for factors between two numbers, will we always add 1. So making the answer 8+1. And if Exclusive does that mean we do not +1 so answer...
View ArticleProblem Solving (PS) | Yesterday's closing price...
Yesterday's closing price of 2420 different stocks listed on a certain stock exchange were all different from today's closing prices. The number of stocks that closed at a higher price today than...
View ArticleProblem Solving (PS) | Re: The table shows the number of shares of each of...
Original Range = 112 - 45new Range = 118 - 36so increase in range = 15Answer D
View ArticleData Sufficiency (DS) | Re: Is x^3 > 0? (1) (x + y)(x – y) = 0 (2) x = |y|
It would be E, if you consider the possibility of zero.
View ArticleProblem Solving (PS) | Re: There are 6 distinct letters of the English...
Total number of digits in the code is 6. Out of this 6, 4 are alphabets = 6C4 ways=15The other 2 are numeric digits = 4C2 ways=6Now these 6 digits can be arranged among themselves in 6! ways.So, the...
View ArticleGMAT Club Tests | Re M26-19
to find # of ways to have exactly 3 digits 6 i used the formula 9*9*5P5/3! ( the order is important, 12 not equal 21, we also need to divide by 3!, because we have 3 indistinguishable numbers ( 3...
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