GMAT Problem Solving (PS) | Re: In a certain district, the ratio of the...
If ever you're not seeing the math, you know one of the answers has to be correct, so you can just backsolve. Looking at the increase in numbers, it would make sense that the number of democrats MORE...
View ArticleGMAT Data Sufficiency (DS) | Re: Value of a^-2 b^-3
stne wrote:Bunuel wrote:What is the value of a^-2*b^-3? Note that we are not told thata andb areintegers.a^{-2}*b^{-3}=\frac{1}{a^2b^3}=? So, basically we need to find the value ofa^2b^3...
View ArticleGMAT Problem Solving (PS) | Re: Which of the following represents all the...
Ahhh...I wasn't considering that for x^2, the range might be greater than x or less than negative x. I am used to solving for, say, |x-3| which is a bit more straightforward. Thanks a lot for the...
View ArticleGMAT Problem Solving (PS) | Re: How many values can the integer p=|x+3|-|x-3|...
How many values can the integer p=|x+3|-|x-3| assume?Checkpoints at -3, 3x<-3, -3<x<3, x>3x<-3: p=|x+3|-|x-3| p=-(x+3) - -(x-3)p= -x-3 - (-x+3)p= -x-3 + x -3 p=...
View ArticleGMAT Data Sufficiency (DS) | Re: Which of the two values 10^(-2) and 10^(-3),...
Which of the two values 10^(-2) and 10^(-3), is x more close to? Is x closer to 10^-3 than 10-2? Is x < (1/2)(1/100+1/1000)?Is x < 11/2000?1. x is more close to 10^(-4) than to 10^(-1)....
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GMAT Problem Solving (PS) | Re: If a certain coin is flipped, the probability...
My try ( I am a beginner trying to solve this kind of problems using combinations \frac{C^5_3}{{(C^2_1)^5}} = 1/32C^5_3 : number of combinations in which we obtain 3 H in 5 tosses(C^2_1)^5 : number of...
View ArticleGMAT Problem Solving (PS) | Re: If |x| - |y| = |x+y| and xy does not equal to...
If |x| - |y| = |x+y| and xy does not equal to 0, which of the following must be true?|x| - |y| = |x+y||x|-|y| = an absolute value which means that |x|-|y| is positive. Therefore, we can square both...
View ArticleGMAT Problem Solving (PS) | Re: If |12x−5|>|7−6x|, which of the following...
If |12x−5|>|7−6x|, which of the following CANNOT be the product of two possible values of x?Find two checkpoints: |12x−5|>|7−6x|x=5/12, x=7/6x<5/12, 5/12<x<7/6, x>7/6x<5/12...
View ArticleGMAT Problem Solving (PS) | Re: If 3|3 – x| = 7, what is the product of all...
If 3|3 – x| = 7, what is the product of all the possible values of x?x≥3, x<3x≥3: 3|3 – x| = 7 3 -(3-x) = 73 (-3+x) = 7-9 + 3x = 73x = 16x=16/3 Validx<33(3-x) = 79-3x = 7-3x=-2x=2/3(16/3)*(2/3) =...
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Integrated Reasoning (IR) | IR numerical algorithm flowchart problem
Attachment: flowchart.jpg [ 48.32 KiB | Viewed 14 times ] A value p = 50 is initially entered. When S first has a value of S = 10, p has a value of_____________.[drop-down menu choices:] 51, 53, 57,...
View ArticleGMAT Problem Solving (PS) | Re: Which of the following inequalities has a...
Which of the following inequalities has a solution set that when graphed on the number line, is a single segment of finitelength?A. x^4 ≥ 1 4√x^4 ≥ 4√1x ≥ 1x is found anywhere from 1 to + infinity....
View ArticleGMAT Problem Solving (PS) | Re: For what value of x, is |x – 3| + |x + 1| +...
For what value of x, is |x – 3| + |x + 1| + |x| = 10?It's easiest just to plug in answer choices:(D): 4|x – 3| + |x + 1| + |x| = 10?|4 - 3| + |4 + 1| + |4| = 10?|1| + |5| + |4| = 10(D)
View ArticleGMAT Problem Solving (PS) | If p and q are two different odd prime numbers,...
If p and q are two different odd prime numbers, such that p < q, then which of the following must be true?(A) (2p + q) is a prime number(B) p + q is divisible by 4(C) q - p is divisible by 4(D) (p...
View ArticleGMAT Problem Solving (PS) | Re: If |p−6|+p=6, which of the following must be...
WholeLottaLove wrote:Bunuel wrote:So, the equation holds for p<6 and p=6 --> p<=6.Hope it's clear.because for p<6 and p≥6 the intersection is p ≤6, correct?No. Because p<6 and p=6 means...
View ArticleGMAT Problem Solving (PS) | Re: A certain company assigns employees to...
Applying combinations I think would be in this way:C^4_1 * C^2_1 = 4*2 = 8
View ArticleGMAT Data Sufficiency (DS) | Re: How many factors does the integer X have?
WholeLottaLove wrote:How many factors does the integer xhave?(1) x^(x+3) = (2x)^(x-1) x^(x+3) = (2x)^(x-1)x^(x+3) = x^(x-1) 2^(x-1)(x^(x-1)) / x^(x+3) = x^(x-1) 2^(x-1) / (x^(x-1))x^(x+3)-(x-1) =...
View ArticleGMAT Quantitative Section | Re: Veritas Prep Blog PDF Version
very good post...... i really appreciate your effort... we need people like you to handle stress of GMAT
View ArticleGMAT Quantitative Section | Re: Really diffucult quant question collection
thanks.. bs123+1 kudos to you
View ArticleGMAT Problem Solving (PS) | Re: If f(x) = x^3 + 1, and g(x) = 2x, for what...
josemnz83 wrote:On the RHS, g(x)=2x. You wrote 2(x^3+1). What happened to the x in the 2x? That is where I get lost.Thanks! Bunuel wrote:josemnz83 wrote:If f(x) = x^3 + 1, and g(x) = 2x, for what...
View ArticleGMAT Data Sufficiency (DS) | Re: If x and y are non-zero integers and |x| +...
If x and y are non-zero integers and |x| + |y| = 32, what isxy?(1) -4x – 12y = 0 -4x = 12yx = -3y|x| + |y| = 32|-3y| + |y| = 324y = 32y=8x = -3yx = -3(8)x=-24xy =(-24)*(8)SUFFICIENT(2) |x| – |y| = 16...
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