SAT2试题文档格式.docx

1、C. increase four fold D. double E. increase to more than double6. Which of the following could be a solution of the equation x = 4x - 3A. -1 B. -0.6 C. 0 D. 0.6 E. 1.57. The number of degrees that the hour hand of a clock moves through between noon and 2.30 in the afternoon of the same day isA. 720

2、B. 180 C. 75 D. 65 E. 608. Jeff takes 20 minutes to jog around the race course one time, and 25 minutes to jog around a second time. What is his average speed in miles per hour for the whole jog if the course is 3 miles long?A. 6 B. 8 C. 10 D. 12 E. 149. A and B are equidistant from the line l. How

3、many circles can be drawn with their centres on line l and that pass through both A and B?A. 1 B. 2 C. 3 D. 4 E. 1010. A wheel has a diameter of x inches and a second wheel has a diameter of y inches. The first wheel covers a distance of d feet in 100 revolutions. How many revolutions does the secon

4、d wheel make in covering d feet?A. 100xy B. 100y - x C. 100x - y D. 100y / x E. 100x / y SAT考试数学练习题第八套 SAT problem solving practice test 81. 3x + y = 19 , and x + 3y = 1.Find the value of 2x + 2yA. 20 B. 18 C. 11 D. 10 E. 52. The price of a cycle is reduced by 25 per cent. The new price is reduced b

5、y a further 20 per cent. The two reductions together are equal to a single reduction ofA. 45% B. 40% C. 35% D. 32.5% E. 30%3. x and y are integersx + y 6What is the smallest possible value of x - y ?C. 4 D. -2 E. -44. If x5y4z2 0 , which of the following must be true?I xy II yz III xz A. I B. II C.

6、III D. I and II E. None5. BCD is a line segment and Angle BAC = Angle ACB ; Angle ACD = ?A. 140 B. 100 C. 120 D. 60 E. it cannot be determined from the information given6. Which of the following integers is in the solution set of 1 3x 0 , which of the following must be true?I n 1II n - n E. none6. I

7、f the slope of a line is and the y-intercept is 3, what is the x-intercept of the same line?B. 3/2 D. -2/3 E. -67. 6 people meet for a business lunch. Each person shakes hands once with each other person present. How many handshakes take place?A. 30 B. 21 D. 15 E. 108. If x - y = 55, and x - y = 11,

8、 then y =A. 8 B. 5 D. -8 E. -39. In a sports club with 30 members, 17 play badminton and 19 play tennis and 2 do not play either. How many members play both badminton and tennis?A. 7 C. 9 E. 1110. Rectangle ABCD has a perimeter of 26. The half circle with diameter AD has an area of 8. What is the pe

9、rimeter of the part of the figure that is not shaded?A. 26 + 4 B. 18 + 8 C. 18 + 4 D. 14 + 4 E. 14 + 2SAT考试数学练习题第十套 SAT problem solving practice test 101. Courier charges for packages to a certain destination are 65 cents for the first 250 grams and 10 cents for each additional 100 grams or part the

10、reof. What could be the weight in grams of a package for which the charge is $1.55 ?A. 1155 B. 1145 C. 1040 D. 950 E. 2592. AB and DE are parallel. Angle BAC = 30 , angle CDE = 50. What is the measure of angle ACD ?A. 100 B. 90 C. 80 D. 70 E. cannot be determined from the information3. If x / y is a

11、n integer, which of the following statements must be true?A. both x and y are integers B. x is an integer C. either x or y is negative D. y / x is an integer E. x = ny where n is an integer4. What is the average of four tenths and five thousandths?A. 25002 B. 2502 C. 0.225 D. 0.2025 E. 0.020255. Wha

12、t is the simplified result of following the steps above in order?（1） add 5y to 2x（2） multiply the sum by 3（3） subtract x + y from the productA. 5x + 14y B. 5x + 16y C. 5x + 5y D. 6x + 4y E. 3x + 12y6. If the equation of a line p in the coordinate plane is y = 3x + 2, what is the equation of line q w

13、hich is a reflection of line p in the x-axis?A. y = -3x + 2 B. y = -3x - 2 C. y = 3x - 2 D. y = -1/3x - 5 E. y = -1/3x + 57. If y x = y2x for all positive integers, then （3 4） 2 =A. 38 B. 312 C. 316 D. 324 E. 3328. The first term in a sequence is 1 and the second term is 5. From the third term on ea

14、ch term is the average （arithmetic mean） of all preceding terms. What is the 25th term in the sequence?A. 2.5 B. 3 C. 5 D. 25 E. 509. The solid brick shown is made of small bricks of side 1. When the large brick is disassembled into its component small bricks, the total surface area of all the small

15、 bricks is how much greater than the surface area of the large brick?A. 32 B. 40 C. 60 D. 72 E. 8010. （3x + 2） （2x - 5） = ax + kx + n .What is the value of a - n + k ?A. 5 E. 11 SAT考试数学练习题第十一套 SAT problem solving practice test 111. A straight fence is to be constructed from posts 6 inches wide and s

16、eparated by lengths of chain 5 feet long. If a certain fence begins and ends with a post, which of the following could not be the length of the fence in feet? （12 inches = 1 foot）A. 17 B. 28 C. 35 D. 39 2. A circular logo is enlarged to fit the lid of a jar. The new diameter is 50 per cent larger th

17、an the original. By what percentage has the area of the logo increased?A. 50 B. 80 C. 100 D. 125 E. 2503. n denotes the number obtained when n is rounded to the nearest tenth. For example 4.31 = 4.30.089 - 1.135 =A. 1.05 B. 1.04 C. -1.05 D. -1.0 E. -0.14. Half the people on a bus get off at each sto

18、p after the first, and no one gets on after the first stop. If only one person gets off at stop number 7, how many people got on at the first stop?A. 128 B. 64 C. 32 D. 16 5. The slope of the line passing through the point （5,5） is 5/6. All of the following points could be on the line exceptA. （2.5,

19、 2） B. （11, 10） C. （8, 7.5） D. （-1, 0） E. （-7, -5）6. For a wall of a given material and of a fixed surface area, the rate of heat loss by conduction through the wall is inversely proportional to the thickness （T） of the wall, and directly proportional to the temperature difference （d） across the wal

20、l. The rate of heat loss could be given by which of the following expressions?A. 2d/T B. 2 T/d C. 2d + T D. 2（d + T） E. T/d7. The average （mean） number of children per family in the village is approximatelyA. 2.4 B. 2.0 C. 1.8 D. 1.5 E. 1.08. Refer to the table provided in the previous question.The

21、difference between the median and the mode of the number of children per family isC. 1.5 D. 1.0 E. 09. If x is an integer, which of the following could be xI 1.25 x 1017II 12.5 x 10-12III 0.125 x 10-12 C. I and II only D. I and III only E. II and III only10. At what point does the graph of 5x + 4y =

22、 12 intersect the y-axis?A. （0, 3） B. （0, -3） C. （3, 0） D. （5, 0） E. （0, -5） SAT考试数学练习题第十二套 SAT problem solving practice test 121. 6 pints of a 20 percent solution of alcohol in water are mixed with 4 pints of a 10 percent alcohol in water solution. The percentage alcohol in the new solution isA. 16

23、 C. 14 D. 13 E. 122. ASB is a quarter circle. PQRS is a rectangle with sides PQ = 8 and PS = 6. What is the length of the arc AQB ?A. 5 B. 10 C. 25 D. 14 E. 283. If x y = （x + y） - （x - y）Then 5 5 =E. 204. Which of the following describes the relationship between A and B as shown in the pairs of numbers in the table a