Problem Solving (PS) | Re: Jackie has two solutions that are 2 percent...
blockman wrote:Jackie has two solutions that are 2 percent sulfuric acid and 12 percent sulfuric acid by volume, respectively. If these solutions are mixed in appropriate quantities to produce 60...
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Problem Solving (PS) | Re: In the rectangle above, if the unshaded region is...
Bunuel wrote:In the rectangle above, if the unshaded region is equilateral and equiangular, what fractional part of the rectangular region is shaded?(A) 1/6 (B) 2/9 (C) 1/4(D) 1/3 (E) 4/9[Reveal]...
View ArticleProblem Solving (PS) | Re: The rectangular floor of a warehouse is 300 feet...
Bunuel wrote:The rectangular floor of a warehouse is 300 feet wide and 350 feet long. If the width remains fixed, how many additional feet would have to be added to the length to increase the floor...
View ArticleProblem Solving (PS) | Re: If f(x) = 343/x^3, what is the value of f(7x)*...
Bunuel wrote:If\(f(x) = \frac{343}{x^3}\) , what is the value of\(f(7x)* f(\frac{x}{7})\) in terms of f(x)?(A) \(f(x^2)\) (B)\((f(x))^2\) (C)\(f(x^3)\) (D)\((f(x))^3\) (E)\(f(343x)\)Kudos for a...
View ArticleProblem Solving (PS) | Re: Which of the following is NOT equivalent to 49a^2...
Bunuel wrote:Which of the following is NOT equivalent to \(49a^2 = 9b^2 - 4\)?A. \(49a^2 + 4 = 9b^2\)B. \(98a^2 = 18b^2 - 8\)C. \(49a^2 = (3b - 2)(3b + 2)\)D. \(a^2 = \frac{9b^2 - 4}{7^2}\)E. \(7a =...
View ArticleProblem Solving (PS) | Re: Find the remainder of the division (2^69)/9.
ankitranjan wrote:Find the remainder of the division (2^69)/9.A. 1B. 4C. 5D. 8E. 7 Let’s find a remainder pattern:2^1/9 has a remainder of 22^2/9 has a remainder of 42^3/9 has a remainder of 82^4/9 =...
View ArticleProblem Solving (PS) | Re: f(x) = x^2 - x. For which of the following values...
Bunuel wrote:f(x) = x^2 - x. For which of the following values of a is f(a) ≥ f(8)? I. a = -7II. a = -8III a = -9A. I onlyB. II onlyC. III onlyD. I and II onlyE. I, II, and III f(8) = 8^2 - 8 = 64 - 8...
View ArticleProblem Solving (PS) | Re: Which of the following values of x gives the...
Bunuel wrote:y = 248 - 398x Which of the following values of x gives the greatest value of y in the equation above?(A) 200(B) 100(C) 0.5(D) 0(E) -1 We see that if x is negative, rather than...
View ArticleProblem Solving (PS) | Re: If n is a positive integer and if (n^3 - n)/(n+1)...
macjas wrote:If n is a positive integer and if (n^3 - n)/(n+1) = 240, then what is the value of n?A. 12B. 16C. 17D. 20E. 48We can simplify the given equation:(n^3 - n)/(n + 1) = 240n(n^2 - 1)/(n + 1) =...
View ArticleProblem Solving (PS) | Re: At the rate of f floors per m minutes, how many...
gmatser1 wrote:At the rate of f floors per m minutes, how many floors does an elevator travel in s seconds?(A) \(\frac{fs}{60m}\)(B) \(\frac{ms}{60f}\)(C) \(\frac{fm}{s}\)(D) \(\frac{fs}{m}\)(E)...
View ArticleProblem Solving (PS) | Re: Given the two equations 3r + s = 17 and r + 2s =...
Bunuel wrote:Given the two equations 3r + s = 17 and r + 2s = 9, by how much does r exceed s?A. 3B. 4C. 5D. 6E. 7We can multiply the second equation by -3 and we have:-3r - 6s = -27When we add this...
View ArticleProblem Solving (PS) | Re: A certain ski shop sells pairs of gloves in 12...
aadikamagic wrote:A certain ski shop sells pairs of gloves in 12 different colors. If one pair of each color is dropped in a bag and a store clerk reaches in to draw two individual gloves...
View ArticleProblem Solving (PS) | Re: Marla starts running around a circular track at...
enigma123 wrote:Marla starts running around a circular track at the same time Nick starts walking around the same circular track. Marla completes 32 laps around the track per hour and Nick completes...
View ArticleProblem Solving (PS) | Re: It takes Avery 3 hours to build a brick wall while...
Bunuel wrote:It takes Avery 3 hours to build a brick wall while Tom can do it in 2.5 hours. If the two start working together and after an hour Avery leaves, how much time will it take Tom to complete...
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Problem Solving (PS) | One gallon of soft drink is made of 40% orange juice...
Hinagu - I thinkgenxer123 did a great job illustrating the problem. Nevertheless, here is my attempt to help you understand. Pardon my mess.Attachment: 1.jpg [ 51.22 KiB | Viewed 10 times ] Since...
View ArticleData Sufficiency (DS) | Re: If in a six-digit integer N , F(k) is the value of
yup, this question frequently appears in test prep.st: abcabc = abc * 1001 is divisible 7st 2 is true
View ArticleData Sufficiency (DS) | Re: What is the number of factors of X
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View ArticleData Sufficiency (DS) | Re: If a and b are positive integers, what is the...
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View ArticleData Sufficiency (DS) | Re: If the product of three integers, [i]mnk[/i] 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 ArticleProblem Solving (PS) | Re: If the perimeter of a rectangular garden plot is...
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...
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