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A thin piece of cable 90 meters long is cut into two pieces.
A thin piece of cable 90 meters long is cut into two pieces. One piece is used to form a square with diagonal \sqrt{72}, and the other is used to form a equilateral triangle. 6 meters cable is left...
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Consecutive events.
How to treat probability of consecutive events. For example if there are four students in class. What is the probability they were born on 4 consecutive days of the week? I do not have the OA.
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At an upscale fast-food restaurant, Shin can buy 3 burgers, 7 shakes,
This topic have been merged with: http://gmatclub.com/forum/topic-49205.html
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In a certain accounting class of 90 students 70% of the students took
In a certain accounting class of 90 students, 70% of the students took the final exam on the assigned day while the rest of the students took the exam on a make-up date. If the students on the assigned...
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In a certain shipment of T-shirts, 20 percent are red. Of those shirts
Tough and Tricky questions: Overlapping Sets.In a certain shipment of T-shirts, 20 percent are red. Of those shirts, 30 percent are size small. If there are 366 red, small T-shirts, how many T-shirts...
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For any numbers x and y, xy = 2x - y - xy. If xy = 0, then which
Tough and Tricky questions: Algebra.For any numbers x and y, x \diamond y = 2x - y - xy. If x \diamond y = 0, then which of the following CANNOT be y?A. 3B. 2C. 0D. -\frac{4}{3}E. -2Kudos for a correct...
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A circular table has a glass center with a diameter of 4x inches,
Tough and Tricky questions: Geometry.A circular table has a glass center with a diameter of 4x inches, which is surrounded by a metal ring with a width of 2 inches. In terms of x, what fraction of the...
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A rectangular yard (white area) is surrounded by a hedge (shaded regio
Tough and Tricky questions: Geometry.Attachment:s95-22.pngNote: Figure not drawn to scale.A rectangular yard (white area) is surrounded by a hedge (shaded region) with a length of 15 meters and a width...
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Is abc = 2?
Tough and Tricky questions: Algebra.Is abc = 2?(1) ab = 2(2) bc = 2Kudos for a correct solution.
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An amusement park currently charges the same price for each ticket of
Tough and Tricky questions: Word problems.An amusement park currently charges the same price for each ticket of admission. If the current price of admission were to be increased by $3, 12 fewer tickets...
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If (2y - 5)^2 = 361, which of the following could be the value of y+2
Tough and Tricky questions: Algebra.If (2y - 5)^2 = 361, which of the following could be the value of y + 2?A. 24B. 19C. 12D. -7E. -5Kudos for a correct solution.
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If q = 43 + (p - 7)^2, then q is lowest when p =
Tough and Tricky questions: Min/Max Problems.If q = 43 + (p - 7)^2, then q is lowest when p =A. 0B. 7C. 10D. 14E. 43Kudos for a correct solution.
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Which of the following is NOT equivalent to 49a^2 = 9b^2 - 4?
Tough and Tricky questions: Algebra.Which of the following is NOT equivalent to 49a^2 = 9b^2 - 4?A. 49a^2 + 4 = 9b^2B. 98a^2 = 18b^2 - 8C. 49a^2 = (3b - 2)(3b + 2)D. a^2 = \frac{9b^2 - 4}{7^2}E. 7a =...
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(5^8 + 1)(5^4 + 1)(5^2 + 1)(5^2 - 1) =
Tough and Tricky questions: Arithmetic.(5^8 + 1)(5^4 + 1)(5^2 + 1)(5^2 - 1) =A. 5^{16} - 1B. 5^{16} + 1C. 5^{32} - 1D. 5^{128} - 1E. 5^{16}(5^{16} - 1)Kudos for a correct solution.
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If R =(30^65 - 29^65)/(30^64 + 29^64) then
If R =\frac{30^{65} - 29^{65}}{30^{64} + 29^{64}} then(A) 0<R\leq{0.1}(B) 0.1<R\leq{0.5}(C) 0.5<R\leq{1.0}(D) R<1.0(E) R>1.0
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The average of five natural numbers is 150. A particular number among
The average of five natural numbers is 150. A particular number among the five exceeds another by 100. The rest three numbers lie between these two numbers and they are equal. How many different values...
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SliceCo, a company that sells knives, is structured so that each of it
SliceCo, a company that sells knives, is structured so that each of its x regional sales directors has y salespeople working for that director. If, for the month of May, SliceCo sold exactly 2,200...
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How good is a 47Q score?
Hi,I recently took the GMAT and was a little disappointed with my quant score. I was hoping to be in the 75th percentile, but I am in the 68th. This is mainly because the GMAT percentile table has gone...
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If a certain factory makes a total of 30,720 wrenches, how many minute
Tough and Tricky questions: Word Problems.If a certain factory makes a total of 30,720 wrenches, how many minutes does the factory take to make the wrenches?(1) The factory creates the wrenches without...
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By what percent did the median annual cost of health insurance in City
Tough and Tricky questions: Properties of Sets.By what percent did the median annual cost of health insurance in City X increase from 1990 to 2000?(1) In 1990, the median annual cost of health...
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