OG19新题 题目总数：142 做题总人数：11419 平均准确率：77.2%
In 1913, the largely self- taught Indian mathematician Srinivasa Ramanujan mailed 120 of his theorems to three different British mathematicians;only one, G. H. Hardy, recognized the brilliance of these theorems, but thanks to Hardy’s recognition, Ramanujan was eventually elected to the Royal Society of London.
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In the figure shown, is || ?(1) r = s(2) t = u
来源：OG21新题 1155人已做 600难度 91.3%正确率
In the figure above, ABCD is a parallelogram and E is the midpoint of side AD. The area of triangular region ABE is what fraction of the area of quadrilateral region BCDE ?
来源：OG21新题 920人已做 其他难度 62.6%正确率
Did the population of Town C increase by at least 100 percent from the year 2000 to the year 2010 ?(1)The population of Town C in 2000 was 2/3 of the population in 2005.(2)The population of Town C increase by a greater number of people from 2005 to 2010 than it did from 2000 to 2005
来源：OG21新题 930人已做 其他难度 74.8%正确率
The outer dimensions of a closed rectangular cardboard box are 8 centimeters by 10 centimeters by 12 centimeters, and the six sides of the box are uniformly centimeter thick. A closed canister in the shape of a right circular cylinder is to be placed inside the box so that it stands upright when the box rests on one of its sides. Of all such canisters that would fit, what is the outer radius, in centimeters, of the canister that occupies the maximum volume?
来源：OG21新题 905人已做 其他难度 53%正确率
If the length of a diagonal of a square is , what is the area of the square in terms of x ?
来源：OG21新题 923人已做 其他难度 88.9%正确率
Last year Brand X shoes were sold by dealers in 403 different regions worldwide, with an average (arithmetic mean) of 98 dealers per region. If last year these dealers sold an average of 2,488 pairs of Brand X shoes per dealer, which of the following is closest to the total number of pairs of Brand X shoes sold last year by the dealers worldwide?
来源：OG21新题 916人已做 其他难度 82.5%正确率
Carol purchased one basket of fruit consisting of 4 apples and 2 oranges and another basket of fruit consisting of 3 apples and 5 oranges. Carol is to select one piece of fruit at random from each of the two baskets. What is the probability that one of the two pieces of fruit selected will be an apple and the other will be an orange?
来源：OG21新题 918人已做 其他难度 89.4%正确率
If the units digit of is 6, what is the value of k ?
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A certain state’s milk production was 980 million pounds in 2007 and 2.7 billion pounds in 2014. Approximately how many more million gallons of milk did the state produce in 2014 than in 2007 ? (1 billion = and 1 gallon = 8.6 pounds.)
来源：OG21新题 1083人已做 其他难度 81.4%正确率
In the rectangular coordinate system shown above, does the line k (not shown) intersect quadrant II ? (1) The slope of k is - 1/6(2) The y-intercept of k is -6.
If the operation * is defined for all integers a and b by a*b=a+b-ab which of the following statements must be true for all integers a, b, and c ?I a*b=b*aII a*0=aIII (a*b)*c=a*(b*c)
38, 69, 22, 73, 31, 47, 13, 82Which of the following numbers is greater than three-fourths of the numbers but less than one-fourth of the numbers in the list above?
Each entry in the multiplication table above is an integer that is either positive, negative or zero what is the value of a?(1) h≠0 (2) c=f
If b is the product of three consecutive positive integers c, c+1, and c+2, is b a multiple of 24?(1)b is a multiple of 8.(2)c is odd.
With which of the following statements regarding the differing interpretations of Nightingale’s importance would the author most agree
The table above shows the distribution of scores on a geography quiz given to a class of 25 students. Which of the following is closest to the average (arithmetic mean) quiz score for the class?
The passage is primarily concerned with
The passage suggests that socialists within the Russian women's movement and most bourgeois feminists believed that in Russia
Tanks A and B are each in the shape of a right circular cylinder. The interior of Tank A has a height of 10 meters and a circumference of 8 meters, and the interior of Tank B has a height of 8 meters and a circumference of 10 meters. The capacity of Tank A is what percent of the capacity of Tank B ?