GMAT Data Sufficiency (DS) | Re: What is the average (arithmetic mean ) of...
zz0vlb wrote:What is the average (arithmetic mean ) of eleven consecutive integers?(1) The avg of first nine integers is 7(2) The avg of the last nine integers is 9 Here is a neat little trick for...
View ArticleGMAT Problem Solving (PS) | Re: If x is an integer and y = 3x + 2, which of...
Baten80 wrote:If x is an integer and y = 3x + 2, which of the following CANNOT be a divisor of y?A. 4B. 5C. 6D. 7E. 8.pick 1,2,3,4 in mind and except C, all will be eliminated...........
View ArticleGMAT Problem Solving (PS) | Re: In the coordinate plane, a circle has center...
zaarathelab wrote:In the coordinate plane, a circle has center (2, -3) and passes through the point (5, 0). What is the area of the circle?A. 3πB. 3√2πC. 3√3πD. 9πE. 18π.fastest way is to use the...
View ArticleGMAT Problem Solving (PS) | Re: If M is a negative integer and K is a...
rohitgoel15 wrote:If M is a negative integer and K is a positive integer, which of the following could be the standard deviation of a set {-7, -5, -3, M, 0, 1, 3, K, 7}?I. -1.5 II. -2 III. 0(A) I only...
View ArticleGMAT Problem Solving (PS) | Re: Train A traveling at 60 m/hr leaves New York...
carcass wrote:Train A traveling at 60 m/hr leaves New York for Dallas at 6 P.M. Train B traveling at 90 m/hr also leaves New York for Dallas at 9 P.M. Train C leaves Dallas for New York at 9 P.M. If...
View ArticleGMAT Data Sufficiency (DS) | Re: A director is deciding how to cast a play...
smyarga wrote:To answer the question we should know the total number of females and males available in the pool, n and m.The solution for this isP_f^n*P_{50-f}^m if we consider all roles are different...
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GMAT Problem Solving (PS) | Re: A retailer bought a shirt at wholesale and...
BN1989 wrote:A retailer bought a shirt at wholesale and marked it up 80% to its initial price of $45. By how many more dollars does he need to increase the price to achieve a 100% markup?A. 1B. 2C....
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GMAT Problem Solving (PS) | Re: Each of 435 bags contains at least one of the...
docabuzar wrote:Each of 435 bags contains at least one of the following three items: raisins, almonds, and peanuts. The number of bags that contain only raisins is 10 times the number of bags that...
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Integrated Reasoning (IR) | Re: GMAT Pill Integrated Reasoning Ebook (52pg) +...
ganeshjagtap wrote:Thank you gmatpill. This free ebook really helped me improve my confidence for the IR section Glad it's been helpful. For online practice IR questions, check out:...
View ArticleGMAT Problem Solving (PS) | Re: On average, the bottle-nosed dolphin comes up...
slingfox wrote:On average, the bottle-nosed dolphin comes up for air once every two minutes; the beluga whale, a close relative, comes up for air on average once every five minutes. The number of...
View ArticleGMAT Problem Solving (PS) | Re: Is a > c (Data Sufficiency)
OPEN DISCUSSION OF THIS QUESTION IS HERE: is-a-c-137240.html
View ArticleIntegrated Reasoning (IR) | Re: IR - score and strategy
Hi danzig, I can speculate about the IR section but the only things I'm sure of are the issues that the GMAC has made public. For example, you shouldn't worry about more than 3 MSR questions because...
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GMAT Problem Solving (PS) | Re: Vial V is 2/3 full of a certain solution and...
megafan wrote:Vial V is \frac{2}{3} full of a certain solution and vial W, which has 50% more capacity than vial V, is \frac{3}{4} full of the same solution. If half of the solution in vial V is...
View ArticleGMAT Data Sufficiency (DS) | Re: Can we add inequalities
nikhil007 wrote:EvaJager wrote:rphardu wrote:Is a > c?(1) b > d(2) ab2 – b > b2c – d(1) and (2) together: Adding the two inequalities side-by-side we obtain ab^2-b+b>b^2c-d+d or...
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GMAT Problem Solving (PS) | Re: A group of 5 students bought movie tickets in...
Countdown wrote:A group of 5 students bought movie tickets in one row next to each other. If Bob and Lisa are in this group, what is the probability that Bob and Lisa will each sit next to only one of...
View ArticleGMAT Data Sufficiency (DS) | Re: If n is a positive integer, and r is the...
As n is +ve, so to fulfill the condition that (n+1) is divisible by 3,n can be 2, 5, 8, 11, 14and for these values, when (4+7n) is divided by 3, it leaves remainder 0 everytime.so (1) is sufficient.(2)...
View ArticleGMAT Club Tests | Re: Consecutive Integers (m06q28)
To solve the 'sum' of a sequence of numbers, I use the trapezoid formula. Think each number as little dots:Sum of 2 + 3 + 4: o o o o o o o ooArea = \frac{(Top+Bottom)*Height}{2}Area =...
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GMAT Problem Solving (PS) | Re: For what range of values of 'x' ?
Eden wrote:For what range of values of 'x' will the inequality 15x - 2/x > 1?A. x > 0.4B. x < 1/3C. -1/3 < x < 0.4, x > 15/2D. -1/3 < x < 0, x > 2/5E. x < -1/3 and x >...
View ArticleGMAT Problem Solving (PS) | Re: Six machines, each working at the same...
srkaleem wrote:Six machines, each working at the same constant rate, together can complete a job in 12 days. How many additional machines, each working at the same constant rate, will be needed to...
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