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OG19-数学分册
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When the wind speed is 9 miles per hour, the wind-chill factor w is given by
$$w= -17.366 + 1.19t$$,
where t is the temperature in degrees Fahrenheit. If at noon yesterday the wind speed was 9 miles per hour, was the wind-chill factor greater than 0 ?
( 1) The temperature at noon yesterday was greater than 10 degrees Fahrenheit.
(2) The temperature at noon yesterday was less than 20 degrees Fahrenheit.
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OG19-数学分册
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What is the volume of the cube above?
( 1) The surface area of the cube is 600 square inches.
(2) The length of diagonal AB is $$10\sqrt{3}$$ inches.
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OG19-数学分册
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Working together, Rafael and Salvador can tabulate a certain set of data in 2 hours. In how many hours can Rafael tabulate the data working alone?
(1) Working alone, Rafael can tabulate the data in 3 hours less time than Salvador, working alone, can tabulate the data.
(2) Working alone, Rafael can tabulate the data in $$\frac{1}{2}$$ the time that Salvador, working alone, can tabulate the data.
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OG19-数学分册
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Of the total number of copies of Magazine X sold last week, 40 percent were sold at full price. What was the total number of copies of the magazine sold last week?
(1) Last week, full price for a copy of Magazine X was $1.50 and the total revenue from full-price sales was $112,500.
(2) The total number of copies of Magazine X sold last week at full price was 75,000.
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OG19-数学分册
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If p, s, and tare positive, is $$|ps - pt| > p(s - t)$$ ?
(1) $$p < s$$
(2) $$s < t$$
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OG19-数学分册
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If x > 0, what is the value of x ?
(1) $$x^{3} - x = 0$$
(2) $$\sqrt[3]{x}-x=0$$
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OG19-数学分册
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Was the range of the amounts of money that Company Y budgeted for its projects last year equal to the range of the amounts of money that it budgeted for its projects this year?
(1) Both last year and this year, Company Y budgeted money for 12 projects and the least amount of money that it budgeted for a project was $400.
(2) Both last year and this year, the average (arithmetic mean) amount of money that Company Y budgeted per project was $2,000.
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OG19-数学分册
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Is xm < ym ?
(1) x > y
(2) m<0
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OG19-数学分册
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If $$y = x^{2} - 6x + 9$$, what is the value of x?
(1) $$y= 0$$
(2) $$x + y= 3$$
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OG19-数学分册
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In the xy-plane, point (r,s) lies on a circle with center at the origin. What is the value of $$r^{2} + s^{2}$$ ?
(1) The circle has radius 2.
(2) The point ($$\sqrt{2},-\sqrt{2}$$) lies on the circle.
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OG19-数学分册
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If x is a positive integer, is $$\sqrt{x}$$ an integer?
(1) $$\sqrt{4x}$$ is an integer.
(2) $$\sqrt{3x}$$ is not an integer.
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OG19-数学分册
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If p, q, x, y, and z are different positive integers, which of the five integers is the median?
(1) p+x
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OG19-数学分册
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If m and n are positive integers, ism+ n divisible by 4?
(1) m and n are each divisible by 2.
(2) Neither m nor n is divisible by 4.
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OG19-数学分册
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How many integers n are there such that r < n < s?
(1) $$s - r = 5$$
(2) rand s are not integers.
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OG19-数学分册
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In Year X, 8. 7 percent of the men in the labor force were unemployed in June compared with 8.4 percent in May. If the number of men in the labor force was the same for both months, how many men were unemployed in June of that year?
(1) In May of Year X, the number of unemployed men in the labor force was 3.36 million.
(2) In Year X, 120,000 more men in the labor force were unemployed in June than in May.
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OG19-数学分册
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If $$ x\neq 0$$, what is the value of $$(\frac{x^{p}}{x^{q}})^{4}$$?
(1) $$p = q$$
(2) $$x= 3$$
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OG19-数学分册
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[img]https://img.kmf.com/kaomanfen/img/gmat/QQ图片20190406151649.png[img]
What is the radius of the circle above with center O?
(1) The ratio of OP to PQ is 1 to 2.
(2) P is the midpoint of chord AB.
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OG19-数学分册
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If the average (arithmetic mean) of n consecutive odd integers is 10, what is the least of the integers?
(1) The range of then integers is 14.
(2) The greatest of the n integers is 17.
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OG19-数学分册
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If x, y, and z are positive numbers, is x > y > z ?
(1) xz > yz
(2) yx > yz
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OG19-数学分册
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If m and n are nonzero integers, is $$m^{n}$$ an integer?
(1) $$n^{m}$$ is positive.
(2) $$n^{m}$$ is an integer.
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