GMAT Club Tests | Re: D01-41
I'm Getting tripped up by the verbiage. Equal roots to me means x^2+ax−b=0 can have roots of 2 and 2, 4 and 4 etc.I'm stuck at how you chose the Discriminate to be 0 instead of positive.some clarity...
View ArticleProblem Solving (PS) | Re: An initial amount of 600 grams of a saltwater...
Original Amount of salt = 5% of 600g, or 30g of salt. New amount of salt= Salt amount remains the same, but solution is halved to 300g. Now, 30g of salt in a 300g solution translates to salt...
View ArticleProblem Solving (PS) | Re: Eight dogs are in a pen when the owner comes to...
No of ways to arrange 4 from 88P4 = 1680 (B)
View ArticleProblem Solving (PS) | Re: Let A=2^{50}, B=3^{30}, and C=4^{20}. Which of the...
C = 4^20 = 2^40 = (2^4)^10 = (16)^10B = 3^30 = (3^3)^10 = (27)^10A = 2^50 = (2^5)^10 = (32)^1016 < 27 < 32, therefore (16)^10 < (27)^10 < (32)^10So, C<B<A.Answer => E.
View ArticleProblem Solving (PS) | Re: What is the sum of all 3 digit positive integers...
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: If K is the sum of reciprocals of the consecutive...
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: A husband and wife, started painting their house,...
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: (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...
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Problem Solving (PS) | Re: if the straight line y = x + c is tangent to the...
fskilnik wrote:if the straight line y = x + c is tangent to the circle (x-1)^2 + (y+2)^2 = 4, what is the maximum possible value for the constant c ?(A) \(1 - \sqrt 2\)(B) \(1 + \sqrt 2\)(C) \(3 - 2...
View ArticleData Sufficiency (DS) | Re: Is w greater than 1?
Hi,I'd like to know if there is only an inequality sign < > can the number still be equal to it? For instance, in this case, can the w still be -2 or -1. If it does not explicitly state a </=...
View ArticleProblem Solving (PS) | Re: In a certain baord game, a stack of 48 cards, 8 of...
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: What is the value of x given that |x - y| = |x - z|
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 ArticleQuantitative | Re: So bad at Quant it is devastating...
I memorize the questions Memorise the formulae, not questions. Then shift to an understanding of each formulae overtime.but there is an infinite amount of possible questions out there. As soon as I...
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Problem Solving (PS) | Re: The cost price of 10 articles is equal to the...
10 articles at price x = 8 articles at price y10x=8y=100x=10y=12.5Determine change (new-old)/old =(2.5/10) x (100)=25%*excuse my basic language on this
View ArticleProblem Solving (PS) | Re: If x/(x+y) = 6 then y/(y+x)
Manipulate equation 1, to get parts of 2 [y/(y+x)]x/(x+y) = 6 this is equivalent to x+y = x/6 (A)Now to get the numerator of equation 2, here "y" from the equation beforey= x/6 - xsimplified y = -5x/6...
View ArticleQuantitative | Re: Math: Absolute value (Modulus)
Bunuel wrote:10.Absolute ValueTheoryMath: Absolute value (Modulus)Absolute Value: Tips and hintsProperties of Absolute Values on the GMATAbsolute modulus : A better understandingGMAT Question...
View ArticleData Sufficiency (DS) | Dealership A and Dealership B both sell cars and trucks
Dealership A and Dealership B both sell cars and trucks. If the ratio of cars to trucks each dealership sold in the last month is the same for both dealerships, did Dealership A sell the same number of...
View ArticleProblem Solving (PS) | Re: Jenny has 228 more marbles than Jack. If Bob gives...
Jenny has 228 more marbles than Jack, so option A and B are out.Between C, D and E, only 323 is odd and adding 133 to it can give an even number which can be twice of an integer value, so C and E are...
View ArticleData Sufficiency (DS) | Re: If x and y both are integers, what is the value...
Abhi077 wrote:If x and y both are integers, what is the value of x+y?1) \(x(x^2y)\) =12)\(y(y^2x)\)=1From 1 : value of x & y can be +/-1 From 2: Same as 1 , two values of x & y +/- 1IMO E
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