2018年6月出版，OG19新题即OG2019综合册里与OG18相比新增的题目。此内容做为官方题源可以帮助大家更好的需要了解考点，了解考试趋势和考官思维。OG建议大家刷3遍，第一遍刷纸质，第二遍计时精刷，第三遍刷错题。做完后记得及时分析总结。
142
题目总数
15700
做题总人数
78.6%
平均准确率
List S consists of the positive integers that are multiples of 9 and are less than 100. What is the median of the integers in S ?
来源：OG2022分册 47人已做 其他难度 68.1%正确率
For positive integers a and b, the remainder when a is divided by b is equal to the remainder when b is divided by a. Which of the following could be a value of ab ? I. 24 II. 30III. 36
来源：OG2022分册 23人已做 其他难度 82.6%正确率
If x – y = R and xy = S, then (x – 2)(y + 2) =
来源：OG2022分册 23人已做 其他难度 91.3%正确率
If x = and y = , what is the value of the expression ?
来源：OG2022分册 12人已做 其他难度 83.3%正确率
For what value of x between –4 and 4, inclusive, is the value of x2 – 10x + 16 the greatest?
来源：OG2022分册 11人已做 其他难度 63.6%正确率
The toll T, in dollars, for a truck using a certain bridge is given by the formula T = 1.50 + 0.50(x – 2), where x is the number of axles on the truck. What is the toll for an 18-wheel truck that has 2 wheels on its front axle and 4 wheels on each of its other axles?
来源：OG2022分册 11人已做 其他难度 54.5%正确率
A grocer has 400 pounds of coffee in stock, 20 percent of which is decaffeinated. If the grocer buys another 100 pounds of coffee of which 60 percent is decaffeinated, what percent, by weight, of the grocer’s stock of coffee is decaffeinated?
来源：OG2022分册 11人已做 其他难度 90.9%正确率
Point X lies on side BC of rectangle ABCD, which has length 12 and width 8. What is the area of triangular region AXD ?
来源：OG2022分册 8人已做 其他难度 87.5%正确率
Which of the following represent positive numbers?I. –3 – (–5) II. (–3)(–5) III. –5 – (–3)
来源：OG2022分册 9人已做 其他难度 100%正确率
A company sells radios for $15.00 each. It costs the company $14.00 per radio to produce 1,000 radios and $13.50 per radio to produce 2,000 radios. How much greater will the company’s gross profit be from the production and sale of 2,000 radios than from the production and sale of 1,000 radios?
来源：OG2022分册 6人已做 其他难度 83.3%正确率
Sasha: It must be healthy to follow a diet high in animal proteins and fats. Human beings undoubtedly evolved to thrive on such a diet, since our prehistoric ancestors ate large amounts of meat. Jamal: But our ancestors also exerted themselves intensely in order to obtain this food, whereas most human beings today are much less physically active. Jamal responds to Sasha by doing which of the following?
【OG20-P289-410题】If r and s are positive integers, can the fraction r/s be expressed as a decimal with only a finite number of nonzero digits?(1) s is a factor of 100.(2) r is a factor of 100.
【OG20-P181-228题】How many of the integers that satisfy the inequality (x+2)(x+3)x−2 ≥0 are less than 5？
If ab ≠ 0 and points (-a, b) and (-b, a) are in the same quadrant of the xy-plane, is point (-x, y) in this same quadrant?(1) xy > 0(2) ax > 0
【OG18-P162-111题】At a certain instant in time, the number of cars, N, traveling on a portion of a certain highway can be estimated by the formula N= 20Ld600+s2 where L is the number of lanes in the same direction, d is the length of the portion of the highway, in feet, and s is the average speed of the cars, in miles per hour. Based on the formula, what is the estimated number of cars traveling on a 1/2 mile portion of the Highway if the highway has 2 lanes in the same direction and the average speed of the cars is 40 miles per hour? (5,280 feet =1mile)
Since the 1930s aircraft manufacturers have tried to build airplanes with frictionless wings, shaped so smoothly and perfectly that the air passing over them would not become turbulent.
【OG20-P562-610题】 Arts advocate: Few universities require that students who are specializing in science and technology take many art courses.However, real progress in science and technology requires an element of creativity,which the arts foster. Thus,to help science and technology students succeed in their careers, universities should increase the number of art courses required for them.Which of the following would,if true, most strengthen the argument above?
【OG20-P585-685题】A company has developed a new sensing device that, according to the company's claims, detects weak, ultralow-frequency electromagnetic signals associated with a beating heart. These signals, which pass through almost any physical obstruction, are purportedly detected by the device even at significant distances. Therefore, if the company’s claims are true, their device will radically improve emergency teams ability to locate quickly people who are trapped within the wreckage of collapsed buildings. Which of the following, if true, most strengthens the argument?
【OG20-P814-903题】In the major cities of industrialized countries at the end of the nineteenth century,important public places such as theaters,restaurants,shops,and banks had installed electric lighting ,but electricity was in less than 1 percent of homes,where lighting was still provided mainly by candles or gas.
Any decimal that has only a finite number of nonzero digits is a terminating decimal. For example, 24, 0.82, and 5.096 are three terminating decimals. If rand s are positive integers and the ratio r/s is expressed as adecimal, is r/s aterminating decimal?(1) 90＜r＜100(2) s = 4
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数据充分DS
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综合推理IR
