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A runner starts running on a circular path of radius 'r'
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...
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Combined rate formula?
I remember having seen a formula for rates\frac{A*B}{A+B} but I can't remember what it is for (if anything at all). Can someone clarify this for me? Thanks
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The integer n is formed by writing the integers 1 through 3
The integer n is formed by writing the integers 1 through 333 in order as shown below. n=123456789101112.......331332333 counting from the left, what is the 333rd digit of n? A. 0 B. 1 C. 3 D. 7 E. 8
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Which could be the remained when "s" is divided by "t"?
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Difficult probability and graph theory Question. NOT GMAT
Hi, My employer is running this quiz which I really want to win. Please can anyone of you give me solutions to few of them. Any help will be appreciated. 3. Suppose X is an arbitrary numeric random...
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Two circular road signs are to be painted yellow. If the rad
Two circular road signs are to be painted yellow. If the radius of the larger sign is twice that of the smaller sign, how many times more paint is needed to paint the larger sign (assuming that a given...
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Evaluating Mods/Absolute Values Quicker
I have an equation that looks like this |x – 3| + |x + 1| + |x| = 10 and I want to find the x that satisfies the condition. I know that -1,0, and 3 are my pivot points that I have to test. x<-1...
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Evaluating Mods/Absolute Values Quicker
I have an equation that looks like this |x – 3| + |x + 1| + |x| = 10 and I want to find the x that satisfies the condition. I know that -1,0, and 3 are my pivot points that I have to test. x<-1...
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Evaluating Mods/Absolute Values Quicker
I have an equation that looks like this |x – 3| + |x + 1| + |x| = 10 and I want to find the x that satisfies the condition. I know that -1,0, and 3 are my pivot points that I have to test. x<-1...
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If a, b, and c are integers and ab^2/c is a positive even in
If a, b, and c are integers and ab^2/c is a positive even integer, which of the following must be true? I. ab is even II. ab > 0 III. c is even A. I only B. II only C. I and II D. I and III E. I,...
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How many 4-digit positive integers are there, where each
How many 4-digit positive integers are there, where each digit is positive, and no two adjacent digits are same? A. 1236 B. 3024 C. 4096 D. 4608 E. 6561
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INEQUATIONS(Inequalities) Part 1
INEQUATIONS (INEQUALITIES): Prologue During GMAT exam, where time is precious, complicated inequalities often create a difficult situation. Purpose of this article is to narrate the paradigms of...
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Gmat Prep - Q49, awkward questions
Hi buddies, I am in the final part of my preparation for the GMAT. Some weeks ago I took the Test1 of the GMAT Prep and I did it well; I got a 49 in Quant. Yes, it was great, however there were some...
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A school district is organized such that each of its D
A school district is organized such that each of its D department heads has exactly T teachers reporting to her, and that each teacher has exactly S students. What is the ratio of students to...
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Arrangement of circles question.
This topic have been merged with: http://gmatclub.com/forum/topic-145591.html
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Finding the value of M equal to sum of values
This topic have been merged with: http://gmatclub.com/forum/topic-93340.html
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Percentile question
Hi Could someone help me understand this from the OG? In the following example, the increase is greater than 100percent: *** If the cost of a certain house in 1983 was 300 percent of its cost in 1970,...
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Is (7+x)/(8+x) ≥ 7/8?
Thought this was a nice question: Is (7+x)/(8+x) ≥ 7/8? (1) x <= 0 (2) x >= 0
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If a, b and c are integers greater than one
Another nice one.. If a, b and c are integers greater than one, and 15^8=a·b^c, what is the value of c? (1) a is not divisible by 5. (2) b is not divisible by 3.
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Over a seven-week period a company monitored the output of t
Over a seven-week period a company monitored the output of two of its factories, C and D. Each week the company calculated how many units were produced in each factory. The factory that produced the...
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