GMAT Problem Solving (PS) | Re: For what range of values of x will the...
WholeLottaLove wrote:I understand the way to solve this problem, but I'm still not sure as to why d. is correct and not a. Is is because d is a more "complete" range of correct values?Thanks! The...
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GMAT Data Sufficiency (DS) | Re: Does the curve (x-a)^2 + (y-b)^2=16...
christoph wrote:Does the curve (x-a)^2 + (y-b)^2=16 intersect the y-axis ?(1) a^2+b^2>16(2) a=|b|+5 s1: put a= 0 and b =5 then the cirlce touches y axis but if the center is 3, 8 then the cirlce...
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GMAT Data Sufficiency (DS) | Re: If x^2 = y^2, is true that x>0?
burnttwinky wrote:If x^2 = y^2, is true that x>0?(1) x=2y+1(2) y<= -1 S1: put x= y once and -y once so we get 1/2 and -1 two values hence NSnow s2: NSs1 and s2 : sufficient and answer is C...
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GMAT Data Sufficiency (DS) | Re: If vertices of a triangle have coordinates...
krrish wrote:noboru wrote:If vertices of a triangle have coordinates (-2,2), (3,2) and (x,y), what is the area of the triangle?A) |y-2|=1B) angle at the vertex (x,y) equals to 90 degrees dude here's...
View ArticleGMAT Problem Solving (PS) | Re: It would take one machine 4 hours to complete...
Bunuel wrote:Walkabout wrote:It would take one machine 4 hours to complete a large production order and another machine 3 hours to complete the same order. How many hours would it take both machines,...
View ArticleGMAT Quantitative Section | Could anyone please share those Sandeep Gupta's...
Could anyone please share those Sandeep Gupta's compilation of 700-800 level quant questions.
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GMAT Problem Solving (PS) | Re: For a nonnegative integer n, if the remainder...
putronix wrote:Question is not typed clearly...solved it as 2n and not 2^n Edited the original post.
View ArticleGMAT Data Sufficiency (DS) | Re: What is the difference of the integers m and...
guerrero25 wrote:What is the difference of the integers m and n ?(1) m = -n(2) |m|= - |n| Similar questions to...
View ArticleGMAT Data Sufficiency (DS) | Re: N is an integer . Is N negative ?
N is an integer . Is N negative ?A) |N|= -NThat is true if N\leq{0}Not sufficient to say that is negative (could be 0).B) N^4=N^2N^4-N^2=0 N^2(N^2-1)=0 so N could be 0,1 or -1.Not sufficient1+2) N...
View ArticleGMAT Data Sufficiency (DS) | Re: What is the difference of the integers m and...
Got it. The similarity between this and the other question I just asked was throwing me off. Thanks. Bunuel wrote:WholeLottaLove wrote:The way you solved them.Or, is it because a and b could take on a...
View ArticleGMAT Data Sufficiency (DS) | Re: Joanna bought only $0.15 stamps and $0.29...
I'd like to provide a demonstration for the rule above.Let's ax+by=c...................................(1)an equation with a, b, c positive integers and GCD(a, b)=1.If (x0, y0) satisfies (1) thena(x0)...
View ArticleGMAT Data Sufficiency (DS) | Re: N is an integer. Is N negative ?
WholeLottaLove wrote:A) |N|= -NThat is true if N\leq{0}Not sufficient to say that is negative (could be 0).I hate to ask one more stupid question but...How is |n| = -n if n≤0? If n is zero then...
View ArticleGMAT Problem Solving (PS) | Re: A manufacturer of a certain type of screw...
ritumaheshwari02 wrote:A manufacturer of a certain type of screw rejects any screw whose length is less than 2.5 — 0.03 centimeters or greater than 2.5 + 0.03 centimeters. If k represents the length...
View ArticleGMAT Data Sufficiency (DS) | Re: Is the tens digit of a three-digit positive...
cumulonimbus wrote:Both equations can be combined as: p=39*t+120 (39 - LCM of 13 and 3, and 120 first common term of individual equations)Could you please elaborate on what you're doing here?
View ArticleGMAT Data Sufficiency (DS) | A runner starts running on a circular path of...
A runner starts running on a circular path of radius 'r' meters. His average speed (in meters/min) is ∏r during the first 30 sec, ∏r/2 during the next one minute, ∏r/4 during the next 2 min, ∏r/8...
View ArticleGMAT Problem Solving (PS) | Re: |x+3| - |4-x| = |8+x|. How many solutions...
rrsnathan wrote:VeritasPrepKarishma wrote:guerrero25 wrote: I am trying to understand the Modules questions - I took this from GMAT club's quant book . Q. |x+3| - |4-x| = |8+x|. How many solutions...
View ArticleGMAT Quantitative Section | Re: Consolidated "Thursdays with Ron" Quant & DS
nice andcool information thanks for providing this info
View ArticleGMAT Problem Solving (PS) | Re: A student's average (arithmetic mean) test...
(80-78)=22*5tests=1078+10=88
View ArticleGMAT Data Sufficiency (DS) | Re: What is the standard deviation (SD) of the...
atalpanditgmat wrote:What is the standard deviation (SD) of the four numbers p, q, r, s?(1) The sum of p, q, r and s is 16(2) The sum of the squares of p, q, r and s is 208Check here:...
View ArticleGMAT Problem Solving (PS) | Re: In May Mrs. Lee's earnings were 60 percent of...
fozzzy wrote:TeHCM wrote:In May Mrs. Lee's earnings were 60 percent of the Lee family's income. In June Mrs. Lee earned 20 percent more than in May. If the rest of the family's income was the same...
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