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PREP07 Test 1
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The British sociologist and activist Barbara Wootton once noted as a humorous example of income maldistribution that the elephant that gave rides to children at the Whipsnade Zoo was earning annually exactly what she then earned as director of adult education for London.
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PREP07 Test 1
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At a two-day seminar, 90 percent of those registered attended the seminar on the first day. What percent of those registered did not attend the seminar on either day?(1) A total of 1,000 people registered for the two-day seminar.(2) Of those registered, 80 percent attended the seminar on the second day.
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PREP07 Test 1
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A certain scholarship committee awarded scholarships in the amounts of $1,250,$2,500, and $4,000. The committee awarded twice as many $2,500 scholarships as $4,000 scholarships, and it awarded three times as many $1,250 scholarships as $2,500 scholarships. If a total of $37,500 was awarded in $1,250 scholarships, how many $4,000
scholarships were awarded?
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PREP07 Test 1
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One automobile manufacturer has announced plans to increase the average fuel efficiency of its sport utility vehicles by 25 percent over the next five years, amounting to roughly five miles per gallon, and representing the first significant change in the fuel efficiency of any class of passenger vehicle in almost two decades.
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PREP07 Test 1
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Of the 1,400 college teachers surveyed, 42 percent said that they considered engaging in research an essential goal. How many of the college teachers surveyed were women?(1) In the survey, 36 percent of the men and 50 percent of the women said that they considered engaging in research an essential goal.(2) In the survey, 288 men said that they considered engaging in research an essential goal.
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PREP07 Test 1
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If x >$${y}^{2}$$ >$${z}^{4}$$, which of the following statements could be true?I. $$x >{y}>{z}$$II. $$z >{y}>{x}$$III.$$x>{z}>{y}$$
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PREP07 Test 1
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Due to poaching and increased cultivation in their native habitats, researchers have determined that there are fewer than 100 Arabian leopards left in the wild, and that these leopards are thus many times as rare as China's giant pandas.
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PREP07 Test 1
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In the xy-coordinate plane, the slope of line l is $$\frac34$$ . Does line l pass through the point (- 2/3 , 1/2 )?(1) Line l passes through the point (4,4).(2) Line l passes through the point (-4,-2).
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PREP07 Test 1
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The architects of a certain type of building estimate construction costs to be $2.0 million per floor for each of the first 5 floors, $2.5 million per floor for each of the next 3 floors, and $3.5 million per floor for any additional floors. What would the architects estimate the construction costs to be for a building of this type with 10 floors?
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PREP07 Test 1
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Shrinking faster than any other nation's, the projected decline of Japan's population is 17 percent during the next half century.
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PREP07 Test 1
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If x, y, and z are integers and xy + z is an odd integer, is x an even integer?(1) xy + xz is an even integer.(2) y + xz is an odd integer.
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PREP07 Test 1
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If x is positive, which of the following could be the correct ordering of $$\frac1 x$$, 2x, and $${x}^{2}$$I. $${x}^{2}<2x<\frac1 x$$II. $$x^2<\frac1 x<2x$$III.$$2x<{x^2}<\frac1 x$$
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PREP07 Test 1
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It is possible that, like the Volkswagen, whose unchanging exterior over decades concealed many changes in its internal machinery, the evolution of many prehistoric microbes occurred with no significant modification to their sheaths.
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PREP07 Test 1
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For which of the following functions f is f（x） = f（1-x） for all x?
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PREP07 Test 1
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On the number line, the distance between x and y is greater than the distance between x and z. Does z lie between x and y on the number line?(1) xyz < 0(2) xy < 0
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PREP07 Test 1
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Industrialization and modern methods of insect control have improved the standard of living around the globe while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually unregulated since they were developed more than 50 years ago.
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PREP07 Test 1
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The total price of a basic computer and a printer was $2,500. If the same printer had been purchased with an enhanced computer whose price was $500 more than the price of the basic computer, then the price of the printer would have been $$\frac{1}{5}$$of that total.What was the price of the basic computer?
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PREP07 Test 1
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If the integers a and n are greater than 1 and the product of the first 8 positive integers is a multiple of $$a^n$$, what is the value of a ?(1) $$a^n=64$$(2) n =6
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GWD PREP07 Test 1
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Part of the proposed increase in state education spending is due to higher enrollment, since the number of students in public schools have grown steadily since the mid-1980's and, at nearly 47 million, are at a record high.
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PREP07 Test 1
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If n and t are positive integers, what is the greatest prime factor of the product nt ?(1) The greatest common factor of n and t is 5. (2) The least common multiple of n and t is 105.
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