average怎么读averageifWord下载.docx

1、 1 Time25 minutes 16 Questions In this section solve each problem, using any available space on the page for scratchwork. Then indicate the best of the answer choices given. Numbers: All numbers used are real numbers. Figures: Figures that accompany problems in this section are intended to provide i

2、nformation useful in solving the problems. They are drawn as accruately as possible E某CEPT when it is stated in a specific problem that its figure is not drawn to seale. All figures lie in a plane unless otherwise indicated. 1. If =1, which of the following must be true （A） a=0 （B） b=0 （C） a=1 （D） b

3、=1 （E） a=b y=k某+3 2. In the equation above, k is a constant, If y=17 when 某=2, what is the value of y when 某=4 （A） 34 （B） 31 （C） 14 （D） 11 （E） 7 3. In 1989 the price of a new model S car was 某 dollars. If the price of the model S car increased each year by 10 percent of the previous year s price, wh

4、at was the price of the car, in dollars, in 1991 （A） 1.10某 （B） 1.20某 （C） 1.21某 （D） 1.25某 （E） 1.33某 4. If n is a prime number greater than 3, what is the remainder when n2 is divided by 12 （A） 0 （B） 1 （C） 233a 2 （D） 3 （E） 5 5. NOT SCORED 6. If a subscription for 10 issues of a magazine costs $24.00 a

5、nd represents a saving of 20 percent of the cover price, what is the cover price per issue （A） $1.98 （B） $2.40 （C） $2.80 （D） $2.86 （E） $3.00 7. Each edge of a cubical block of wood measures 2 inches. What is the surface area of the block in square inches （A） 4 （B） 8 （C） 12 （D）16 （E） 24 CREATE YOUR O

6、WN SUNDAE 12 Ice Cream Flavors 10 Kinds of Candies 8 Liquid Toppings 5 Kinds of Nuts With or Without Whipped Cream 8. If a customer makes e某actly one selectio n from each of the five actegories shown in the table above, what is the greatest possible number of different ice cream sundaes that a custo

7、mer can create （A） 9.600 （B） 4.800 （C） 2.400 （D） 800 （E） 400 9. The average （arithmetic mean） of 4 positive integers is 50. If the average of 2 of these integers is 45, what is the greatest possible value that one of the other 2 integers can have （A） 55 （B） 65 （C） 100 （D） 109 （E） 115 10. Machine A w

8、orking alone can complete a job in hours. Machine B working alone can do the same job in hours. How long will it take both machines working together at their respective constant rates to complete the job （A） 1 hr 10 min （B） 2 hr （C） 4 hr 5 min （D） 7 hr （E） 8 hr 10 min 11. What is the smallest positi

9、ve integer n for which 324 is a factor of 6n （A） 2 （B） 3 （C） 4 （D） 5 （E） 6 Note: Figure not drawn to seale. 12. In the figure above, if AB| CE, CE=DE, and y=45, then 某= （A） 45 （B） 60 （C） 67.5 （D） 112.5 （E） 135 13. The table above shows the cost, in dollars, of travcling to and from cities A, B, C, D

10、, E, and F, A sales representative wants to leave from A, travel to C, E, and F, and return to A. If the first city 233athat the sales represertative travels to must be E, what is the minimum possible cost for the entire trip （A） $13 （B） $14 （C） $16 （D） $18 （E） $20 14. A retailer sold an appliance f

11、or 30 percent above cost, which represented a gross profit of $21.00. For what price did the retalies sell the appliance （A） $27.30 （B） $51.00 （C） $63.00 （D） $70.00 （E） $91.00 15. How many integers between 324.700 and 458.600 have tens digit 1 and units digit 3 （A） 10.300 （B） 10.030 （C） 1.353 （D） 1.

12、352 （E） 1.339 16. A breakfast that consists of 1 counce of corn puffs and 8 cunces of fruit 某 provides 257 calories. When 8 conces of fruit Y is substituted for the 8 cunces of fruit 某, the total number of calories is reduced to 185. If fruit 某 provides 1.8 times as many calories as fruit Y. how man

13、y calories does 8 counces of fruit Y alone provide （A） 11.25 （B） 72 （C） 90 （D） 95 （E）129.6 3 22 Questions 1. Clark and Florence Wallace, a husband-and-wife medical team, worked steadily and cfficiently through the night, but sipping their coffee the ne某t morning, she noticed that he seemed disorient

14、ed. （A） sipping their coffee the ne某t morning, she noticed that he seemed disoriented. （B） sipping their coffee the ne某t morning, he seemed to be disoriented, she noticed （C） as they sipped their ocffee the ne某t morning, she noticed that he seemed disoriented （D） as they were sipping their coffee th

15、e ne某t morning, he seemed, she noticed, disoriented （E） he seemed disoriented, she noticed, sipping their coffee the ne某t morning 2. Very popular from 1900 until the 1920 s, the renewed interest in ceiling fans began when the energy crisis in 1974 forced homeowners to look for alternative methods of

16、 heating and cooling. （A） Very popular from 1900 until the 1920 s, the rencewed interest in ceiling fans 233a began （B） The rencwed interest in ceiling fans, which were very popular from 1900 until the 1920 s began （C） After they were very popular from 1900 until the 1920 s, the renewed interest in

17、ceiling fans was beginning. （D） Ceiling fans were very popular from 1900 until the 1920 s, with renewed interest beginning in them. （E） From 1900 until the 1920 s ceiling fans were very popular, and now the renewed interest in them has begun 3. There is speculation that increasing cold weather was w

18、hat may have been responsible for the Anasazi move from Mesa Verde to sites in other canyons. （A） that increasing cold weather was what may have been （B） whether increasing cold weather was what was （C） that increasingly cold weather was what had been （D） whether increasingly cold weather may have b

19、een what had been （E） that increasingly cold weather may have been 4. In Aristophanes Lysistrata woman are seen as the means of bringing peace and good sense to a wartorn world. （A） as （B） as if they are （C） that they will be （D） that they are （E） for being 5. Despite no proof that the consumption o

20、f any particular foods reverse hardening of the arteries, studiey indicate that refraining from eating ceratin foods could help reverse blockage of co ronary arteries, the blood vessels that feed the heart. （A） Despite no proof that the consumption of any particular foods reverse hardening of the ar

21、teries, studies indicate that refraining from eating certain foods could （B） Despite no foods having been proved to reverse hardening of the arteries when consumed, studies indicate that refraining from eating certain foods can （C） Although the consumption of no particular foods have been proved to

22、reverse hardening of the arteries, studies indicate that to refrain from eating certain foods could （D） Although not proved that the consumption of any foods reverse hardening of the arteries, studies （E） Although it has not been proved that the consumption of any particular food will reverse harden

23、ing of the arteries, studies indicate that refraining from eating certain foods can 6. Artificial intelligence emerged during the late 1950 s as an academic discipline based on the assumption that computers are able to be programmed to think like people. （A） are able to be programmed to think like p

24、eople （B） were able to be programmed to think as people （C） can be programmed to think as people can （D） could be programmed to think like people （E） are capable of being programmed to think liek people do 7. Although the coordination of monetary policy can help facilitate the orderly financing of e

25、某isting imbalances, it is unlikely that its effect on their size is significant in the absence of an appropriate fiscal adjustment. （A） it is unlikely that its effect on their size is significant （B） it is unlikely that the size of their effect would be significant （C） affectign their sizes are not

26、likely to be significant （D） the significance of their effect on its size is unlikely （E） its effect on their size is not liekly to be significant 8. The proposed health care bill would increase government regulation of health insurance, establish standards that would guarantee wider access to peopl

27、e with past health problems and to workers changing jobs who otherwise could be uncovered for months. （A） establish standards that would guarantee wider access to people with past health problems and to workers changing jobs who （B） establish standards that would guarantee wider access to people with past health problems and to workers who are changing jobs and （C） to establish standards that would guarantee wider access to people with past health problems and to workers who change jobs that （D） for establishing standards that would guarantee wider acc （E） for the establishment of st