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 ?
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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
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If x – y = R and xy = S, then (x – 2)(y + 2) =
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If x = and y = , what is the value of the expression ?
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For what value of x between –4 and 4, inclusive, is the value of x2 – 10x + 16 the greatest?
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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?
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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?
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Point X lies on side BC of rectangle ABCD, which has length 12 and width 8. What is the area of triangular region AXD ?
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Which of the following represent positive numbers?I. –3 – (–5) II. (–3)(–5) III. –5 – (–3)
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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?
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Over the past five years, the price gap between name-brand cereals and less expensive store-brand cereals has become so wide that consumers have been switching increasingly to store brands despite the name brands’ reputation for better quality. To attract these consumers back, several manufacturers of name-brand cereals plan to narrow the price gap between their cereals and store brands to less than what it was five years ago. Which of the following, if true, most seriously calls into question the likelihood that the manufacturers’ plan will succeed in attracting back a large percentage of consumers who have switched to store brands?
One of the primary distinctions between our intelligence with that of other primates may lay not so much in any specific skill but in our ability to extend knowledge gained in one context to new and different ones.
In no other historical sighting did Halley’s comet cause such a worldwide sensation as did its return in 1910-1911.
Among lower-paid workers, union members are less likely than nonunion members to be enrolled in lower-end insurance plans imposing stricter limits on medical services and requiring doctors to see more patients, and spend less time with each.
Neither a rising standard of living nor balanced trade, by itself, establishes a country's ability to compete in the international marketplace. Both are required simultaneously since standards of living can rise because of growing trade deficits and trade can be balanced by means of a decline in a country's standard of living. If the facts stated in the passage above are true, a proper test of a country's ability to be competitive is its ability to
Glaciers form when the snow, sleet, and hail that fall in a given climatic region exceed the amount capable of being lost through evaporation or melting.
Which of the following lists the number of points at which a circle can intersect a triangle?
If n denotes a number to the left of 0 on the number line such that the square of n is less than 1/100, then the reciprocal of n must be
【OG20-P292-441题】The range of the numbers in set S is x, and the range of the numbers in set T is y. If all of the numbers in set T are also in set S, is x greater than y ?(1) Set S consists of 7 numbers.(2) Set T consists of 6 numbers.
Clark and Florence Wallace, a husband-and-wife medical team, worked steadily and efficiently through the night, but sipping their coffee the next morning, she noticed that he seemed disoriented.