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If a and b are positive integers, what is the greatest commo
New project from GMAT Club: Topic-wise questions with tips and hints!If a and b are positive integers, what is the greatest common divisor of a and b?(1) a + 3b = 61(2) 5a - b = 1Kudos for a correct...
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'abcd' is a four digit number with all distinct digits
'abcd' is a four digit number with all distinct digits. 'ab','bc','cd' are odd numbers.('ab' is not a*b, but rather digits 'a' and 'b'). 'bc' is a product of two prime numbers and 30<bc<50. How...
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A circle is inscribed in a square with an area of 121 square
A circle is inscribed in a square with an area of 121 square units. If the diameter of a marble ball is 1.5, then how many different combinations of 9 distinct marbles can fit around the circumference...
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What is the perimeter of a regular polygon with sides of len
What is the perimeter of a regular polygon with sides of length 12 cm and internal angles measuring 144 each?A. 96 cmB. 108 cmC. 120 cmD. 132 cmE. 144 cm
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For any positive x, y and z if x is n% of y and z is m% of y
For any positive x, y and z if x is n% of y and z is m% of y then what percentage must x be of z?A. (n/m)%B. (m n)%C. (100 / [m n]) %D. (100 m/n)%E. (100 n/m)%
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The Ultimate Hardcore Advanced Quant Study Plan
I have gone through various study plans on this forum and consolidated all the resources into one 'ultimate hardcore advanced' quant study planOG 13OG 12OG 11OG QuantKaplan 800MGMAT Advanced QuantJeff...
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Mariah has decided to hire three workers. To determine whom
Mariah has decided to hire three workers. To determine whom she will hire, she has selected a group of 10 candidates. She plans to have one working interview with 3 of the 10 candidates every day to...
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If angle ABC is 30 degrees, what is the area of triangle BCE
Attachment:DS.gifIf angle ABC is 30 degrees, what is the area of triangle BCE?(1) Angle CDF is 120 degrees, lines L and M are parallel, and AC = 6, BC = 12, and EC = 2AC(2) Angle DCG is 60 degrees,...
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If x and y are distinct integers so that x·y≠0, which of the
If x and y are distinct integers so that xy0, which of the following must be true?A) 1 - \frac{(1 - x)}{x} = 1B) \frac{1}{x} + \frac{1}{y} = \frac{xy}{(y + x)}C) \frac{y}{(y - x)} + \frac{x}{(x - y)} =...
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The ratio of the number of employees of three companies X, Y
The ratio of the number of employees of three companies X, Y and Z is 3:4:8, respectively. Is the average age of all employees in these companies less than 40 years?(1) The total age of all the...
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How to go from 49 to 51?
Hi questions, how can I increase my quant from 49 to 51? I took two gmat practice test from the official gmat prep. First time I got 16 wrong and ended up with a 49 ; second times i only got 8 wrongs...
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When positive integer x is divided by 5, the remainder is 2.
When positive integer x is divided by 5, the remainder is 2. When positive integer y is divided by 4, the remainder is 1. Which of the following cannot be the sum x + y?A. 12 B. 13 C. 14 D. 16 E. 21
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A company that ships boxes
A company that ships boxes to a total of 20 distribution centers uses color coding to identify each center. If at most 3 colors are used to represent each center and if each center is uniquely...
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What is the area of the region in which squares ABCD & EFGH?
Attachment:Problem.JPGWhat is the area of the region in which squares ABCD and EFGH overlap?(1) EF bisects BC.(2) The distance from point C to point E is 2\sqrt{2} and the distance from point C to...
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When the positive integer x divided by the positive integer
New project from GMAT Club: Topic-wise questions with tips and hints!When the positive integer x divided by the positive integer y, the quotient is 3 and the remainder is z. When z is divided by y, the...
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X takes 10 days to complete a task. Y takes half that time
X takes 10 days to complete a task. Y takes half that time to complete the same task. X starts working on the task and later Y joins X. Both work on the task together and complete the task. If 40% of...
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DS:Are all angles of triangle ABC smaller than 90 degrees?
This topic have been merged with: http://gmatclub.com/forum/topic-129298.html
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Would we be expected to solve this manually?
25,000 (1.03)^8 There was something like this in the GMAT Math Book.MY QUESTION : Would we be expected to solve this manually on the GMAT? I know its MC on PS but does anyone have a quick way to solve?
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A list contains twenty integers, not necessarily distinct. D
A list contains twenty integers, not necessarily distinct. Does the list contain at least two consecutive integers?(1) If any single value in the list is increased by 1, the number of different values...
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If a and b are positive integers, what is the units digit of
If a and b are positive integers, what is the units digit of b ?(1) b is 25% greater than a.(2) If b is decreased by 50%, the result is not an integer.
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