GMAT Data Sufficiency (DS) | Re: What is x?
rohitgoel15 wrote:What is x?(1) |x| < 2(2) |x| = 3x – 2When absolute values are given I guess it's better to go for number substitution.1) |x| < 2 implies x can be either 1 or -1. 0 won't come...
View ArticleGMAT Quantitative Section | Re: Permutation and Combination Conceptual Question
usadude05 wrote:5 balls are to be put in 3 boxes. In how many ways can this be done if:-a)Balls are identical and boxes are differentb)balls are different and boxes are identicalc)both boxes and balls...
View ArticleGMAT Problem Solving (PS) | Re: The product of the two-digit numbers above is...
Bunuel wrote:The Official Guide For GMAT® Quantitative Review, 2ND EditionABx BAThe product of the two-digit numbers above is the three-digit number ACA, where A, B and C are three different nonzero...
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GMAT Data Sufficiency (DS) | Re: If x = 3y, is x^2 > y^2?
iced_tea wrote:If x = 3y, is x^2 > y^2?(1) y+x < yx(2) x^2 = 9y^2 Sol: Subsitute for x and we need to know whether 8y^2> 0Or whether y is equal to zero or notFrom st 1 we see that 4y<3y^2...
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GMAT Data Sufficiency (DS) | Re: Is (x - 2)^2 > x^2?
kirankp wrote:Is (x – 2)^2 > x^2?(1) x^2 > x(2) 1/x > 0 Sol: the given equation can be reduced to 4-4x >0 or 4(1-x) >0 or is x<1St 1 x^2-x > 0 or x(x-1)>0So we have either...
View ArticleGMAT Data Sufficiency (DS) | Re: In an election for class president, each of...
enigma123 wrote:In an election for class president, each of 32 students voted for exactly one candidate, Ann, Bob or Carl. Did Bob receive the most votes?(1) Bob received 9 votes.(2) Carl received 13...
View ArticleGMAT Data Sufficiency (DS) | Re: If it took Carol 1/2 hour to cycle from his...
If it took Carol 1/2 hour to cycle from his house to the library yesterday, was the distance that he cycled greater than 6 miles? (1mile = 5,280feet) Question isd>6 --> asrt=d (wherer is the...
View ArticleGMAT Problem Solving (PS) | Re: The sum of the first 50 positive even...
The sum of the first 50 positive even integers is 2550. What is the sum of even integers from 102 to 200 inclusive? A. 5100B. 7550C. 10100D. 15500E. 20100# of even terms (multiples of 2) in the range...
View ArticleGMAT Problem Solving (PS) | Re: A right triangle ABC has to be constructed in...
Units digit has to be 4 to quicken answer choice. 9*7*8*6 = 3024Hope this helpsCheersJ
View ArticleGMAT Problem Solving (PS) | Re: In the below addition A, B, C, D, E, F, and G...
I started with F has to be 0 because if not it would result in a scenario where two of the numbers are the same. So A+C must be greater than or equal to 10. The only combination of this is 4+6. This...
View ArticleGMAT Problem Solving (PS) | Re: In a certain region, the number of children...
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 ArticleGMAT Problem Solving (PS) | Re: If the sum of the first n positive integers...
Hi Karishma,Could you complete from this point onward to choose (C) or (E), please.Quote:Say n = 1. Then x = 1.Sum of 2n even numbers = 2+4 = 6Put x = 1, n = 1 in the options. Only (C) and (E) give...
View ArticleGMAT Problem Solving (PS) | Re: Let T_n be the number of all possible...
arunspanda wrote:Let T_n be the number of all possible triangles formed by joining vertices of an n-sided regular polygon. If T_{n+1} - T_n = 10, then the value of n is A. 5 B. 6 C. 7D. 8E.10 In a...
View ArticleGMAT Problem Solving (PS) | Re: PS - Polygons
seabhi wrote:Bunuel wrote:lnarayanan wrote:In,a Hemisphere igloo,an Eskimo’s head just touches the roof when he stands erect at the centre of the floor, but his son can play over an area of 9856...
View ArticleGMAT Data Sufficiency (DS) | Re: In the figure above, what is the value of x...
manojISB wrote:(1) x = 70.(2) ABC and ADC are both isosceles triangles.Per the 2nd statement , I think AB= BC and AD = DC so AB/BC = AD/DC = 1 or AB/AD = BC/DC =1 And ofcourse AC/AC =1 so triangles...
View ArticleGMAT Data Sufficiency (DS) | Re: Is x^2 + y^2 > 3z
qlx wrote:pavan2185 wrote:Is x^2 + y^2 > 3z(1) (x + y)^2 = 9z and (x - y)^2 = z(2) z = 0 1) given x^2+y^2+2xy = 9z --> x^2+y^2 = 9z- 2xy given x^2+y^2-2xy = z --> x^2+y^2 = z+2xy so 9z- 2xy =...
View ArticleGMAT Data Sufficiency (DS) | Re: In a certain game played with red chips and...
OK so just to clarify this question and move on..Now first statement only tells us that x+y=10. Clearly insufficient. Statement 2 tells us that 5x+3y has to be a multiple of 8, which again can happen...
View ArticleGMAT Problem Solving (PS) | Re: If p and q are integers, such that p < 0 < q,...
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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GMAT Problem Solving (PS) | Re: Rectangular park
hideyoshi wrote:bibha wrote:I have a small confusion. The diagonal is given and it divides the rectangle into two 30-60-90 triangles. Can't we find the measure of two other sides? What am i missing...
View ArticleGMAT Problem Solving (PS) | Re: How many possible integer values are there...
[quote="cpcalanoc"] How many possible integer values are there for x if |4x - 3| < 6 ? A. One B. Two C. ThreeD. Four E. Five Solution: |4x-3| < 6let 4x=a therefore we have |a-3| < 6 ==>...
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