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OG18-定量推理
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A certain company that sells only cars and trucks reported that revenues from car sales in 1997 were down 11 percent from 1996 and revenues from truck sales in 1997 were up 7 percent from 1996. If total revenues from car sales and truck sales in 1997 were up 1 percent from 1996, what is the ratio of revenue from car sales in 1996 to revenue from truck sales in 1996?
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In the rectangular coordinate system, points (4, 0) and (-4, 0) both lie on circle C. What is the maximum possible value of the radius of C ?
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If the integer k is a multiple of 3, which of the following is also a multiple of 3 ?
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$$\frac{(\frac{1}{2})^{-2}}{2^{-2}}$$
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If $${2}^{x}+{2}^{x}+{2}^{x}+{2}^{x}={2}^{n}$$, what is x in terms of n?
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Magoosh
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The average (arithmetic mean) of five numbers is 3x + 4. If one of the numbers is 7x - 4, what is the average of the other four numbers?
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Magoosh
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If $$f(x) = x^{2} + 4$$ and f(2k) = 36, then which of the following is one possible value of k?
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Magoosh
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A class consists of 24 students. Which of the following CANNOT be the ratio of the number of girls to the number of boys?
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Magoosh
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$${\frac{a}{b}+1}\over{\frac{c}{b}}$$ In the expression above, a, b and c are different numbers and each is one of the numbers 2, 3 or 5. What is the greatest possible value of the expression?
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Magoosh
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If the areas of the 4 squares are 50, 32, 18 and 12, what is the ratio of the small shaded portion to the area of the large shaded portion?Note: Figure not drawn to scale
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Manhattan
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A certain square has sides of length x. If the length of each side is doubled, then which of the following represents the area of the resulting square, in terms of x?
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Manhattan
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How many units long is the straight line segment that connects the points (-1,1) and (2,6) on a rectangular coordinate plane?
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Magoosh
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If AC = BC and CD = DE then, in terms of x, the value of y isNote: Figure not drawn to scale
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Flying at constant speed, an airplane of type I (plane I) covers a certain distance between two points in 15 hours. An airplane of type II (plane II) covers the same distance in 10 hours. If plane I makes a landing after flying for 9 hours along the route, how many hours will it take plane II to complete the remainder of the route between the landing point of plane I and the destination?
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.png) This is a Time VS QoQ Rate of Growth chart for Facebook between June 2009 and April 2012 - just before its IPO in May 2012. The dotted line shows actual data while the smooth line shows an estimated regression of those data points.Choose the appropriate drop down that best fills in the sentence with accurate information about the graph.A) The quarter over quarter growth rate tookmonths to fall from the 10%-15% range down to the 5%-10% range.B) The graph shows there tends to be a seasonal effect on the decline of Facebook's rate of growth during the time period shown.
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OG17 OG18
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The diagram shows a project team consisting of exactly 8 workers. Each worker is represented by a circle labeled with a capital letter. An arrow directed from one worker’s circle to a second worker’s circle indicates that the first worker directs project-related questions to the second worker. Each of the workers to whom no other worker directs project-related questions is an individual contributor, and each worker to whom one or more of the other workers directs project-related questions is a coordinator. For example, G (an individual contributor) directs project-related questions to E (a coordinator), but E does not direct project-related questions to G; whereas C and D (both coordinators) direct project-related questions to one another. Use each drop-down menu to create the most accurate statement about this project team based on the information provided. 10A. There are exactly individual contributors on the project team.10B. and the individual contributor who directs project-related questions to the greatest number of other workers is .
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PREP07 Test 1
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The value of $$\frac{10^9-10^4} {10^8-10^5}$$ is closest to which of the following?
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PREP07 Test 1
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In a certain board game, a stack of 48 cards, 8 of which represent shares of stock, are shuffled and then placed face down. If the first 2 cards selected do not represent shares of stock, what is the probability that the third card selected will represent a share of stock?
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PREP07 Test 2
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{-10, -6, -5, -4, -2.5, -1, 0, 2.5, 4, 6, 7, 10} A number is to be selected at random from the set above. What is the probability that the number selected will be a solution of the equation (x - 5)(x + 10)(2x - 5) = 0 ?
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PREP07 Test 2
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A certain class, consisting of a lecture and a question-and-answer session, lasted from 2:45 to 4:30 one afternoon. If the lecture lasted from 2:45 to 4:15, then the question-and-answer session was what fraction of the total class time?
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