GMAT Club Tests | Re: M05-29
mzaid wrote:Bunuel wrote:Official Solution: (1)\(p\) is a prime number. If\(p=2\) then the answer is NO but if\(p=11\) then the answer is YES. Not sufficient. (2)\(2p\) is divisible by 11....
View ArticleProblem Solving (PS) | Re: A group of seasonal workers in Brasil are...
Let\(rate=r\)\(\frac{4}{10} ≤ r ≤ \frac{5}{10}\) melons perminute\(\frac{4*60}{10} ≤ r ≤ \frac{5*60}{10}\) melons perhour\(24 ≤ r ≤ 30\) melons per hourTime,\(t=\frac{50}{r}\)...
View ArticleProblem Solving (PS) | Consider the following multiplication in decimal...
Consider the following multiplication in decimal notation:999 × abc = def132‘abc’ is a three-digit number and ‘def132’ is a six-digit number.Find the value of (a + b + c + d + e + f).A. 35B. 40C. 41D....
View ArticleProblem Solving (PS) | Re: Adam, Bill, and Chris simultaneously start from...
\(\frac{A}{B}=\frac{D+9}{D-9}\).......(1)\(\frac{B}{C}\)=\(\frac{D+7}{D-7}\) .......(2)Multiply (1) and(2)\(\frac{A}{C}=\frac{(D+9)(D+7)}{(D-9)(D-7)}\) \(\frac{(D+9)(D+7)}{(D-9)(D-7)}=\frac{5}{3}\)...
View ArticleData Sufficiency (DS) | Re: If a and b are non-negative integers, is a > b?
Here why are we considering negative numbers for a and b when it already mentioned non negative numbers.?
View ArticleData Sufficiency (DS) | Re: R = 1 + 2xy + x^2y^2, what is the value of xy?
Peachie wrote:shashankism wrote:satishreddy wrote:\(R = 1 + 2*x*y + x^2*y^2\), what is the value of \(x*y\)?(1) R = 0(2) x > 0\(R = 1 + 2xy + (x^2)(y^2)\)\(R = 1 + (xy)^2\)\(xy = \sqrt{R}-1\)...
View ArticleProblem Solving (PS) | Re: What is probability that the sum of two dice will...
We have been asked to find the probability that the sum of 2 dice will yield either 4 or 6. Two dice thrown makes the total number of cases = 6^2 = 36. Favorable cases:Sum will yield 4 = (1,3), (2,2),...
View ArticleData Sufficiency (DS) | Re: What is the ratio of nickels to dimes in a bag of...
IanStewart wrote:DavidTutorexamPAL wrote:(2) Say we had 10 nickels. Then this was increased to 11 and we would have 22 dimes in the bag.This is enough to calculate the ratio!If we try different...
View ArticleProblem Solving (PS) | Re: A fair coin is flipped three times. What is the...
We should remember the rule:Probability (Complex Event) = Probability (Individual Event) * ArrangementsBy that logic, we have to find the probability of heads appearing exactly twice i.e., P(HHT) -...
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Problem Solving (PS) | Re: Mary and three other students took a math test....
Karmesh wrote:nick1816 wrote:Mary immediately knew that all of the other three students scored below average, hence Mary score must be greater than 60. The minimum score that Mary could have gotten to...
View ArticleProblem Solving (PS) | Re: A classroom set of calculators contains 10...
Probability of selecting both graphical calculators = 10/36 * 9/35Total calculators = 10+26 = 36Since it is categorically mentioned “without replacement”, we know that after the first selection, the...
View ArticleProblem Solving (PS) | Re: If a and b are integers, and a·b≠0, and ab
MBA20 wrote:If a and b are integers, and a·b≠0, and \(a^b\)<0, then which of the following must be true? I) a<0 II) b<0 III) b is odd.A) I onlyB) II onlyC) III onlyD) I and II onlyE) I and...
View ArticleProblem Solving (PS) | Re: 1 unit of x% alcohol is mixed with 3 units of y%...
Mohammad Ali Khan wrote:nick1816 wrote:x.........y....60....1.........3\(\frac{x-60}{60-y}\) =3/1x+3y=240...(1)x=240-3y=3(80-y)We have 2 constraints1. x=<1002. x>yAlso, x will be a multiple of...
View ArticleProblem Solving (PS) | Re: If a and b are integers, and a is a factor of b,...
aidyn wrote:Understood. Thank you, Scott.My pleasure.
View ArticleProblem Solving (PS) | Re: In the rectangular coordinate system above, the...
I did it wrong i guess...Is it possible to get as an answer 4 + √2/2?Kind regards!
View ArticleQuantitative | Re: Overview of GMAT Math Question Types and Patterns on the GMAT
[GMAT math practice question] (function) If the symbol # represents one of addition, subtraction, multiplication, or division, what is the value of (2 # 1)?1) 2 # 2 = 12) (–1/2) # (-1) =...
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Problem Solving (PS) | Geometry
Please ExplainAttachments Two Circles.jpg [ 53.75 KiB | Viewed 24 times ]
View ArticleProblem Solving (PS) | Re: Veritas Prep PS Forum Expert - Karishma - Ask Me...
Hi Karishma can you please help me with this?https://gmatclub.com/forum/geometry-297753.html
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