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新sat数学练习题附答案解析（十四）

2023-09-06 17:18:56来源：网络整理

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　　为了帮助大家高效备考sat，新东方在线sat考试网为大家带来新sat数学练习题附答案解析（十四），希望对大家SAT备考有所帮助。更多精彩尽请关注新东方在线SAT频道!　　

　　1. How long will Lucy have to wait before for her $2,500 invested at 6% earns $600 in simple interest?

　　A. 2 years

　　B. 3 years

　　C. 4 years

　　D. 5 years

　　E. 6 years

　　2. Grace has 16 jellybeans in her pocket. She has 8 red ones, 4 green ones, and 4 blue ones. What is the minimum number of jellybeans she must take out of her pocket to ensure that she has one of each color?

　　A. 4

　　B. 8

　　C. 12

　　D. 13

　　E. 16

　　3. If r = 5 z then 15 z = 3 y, then r =

　　A. y

　　B. 2 y

　　C. 5 y

　　D. 10 y

　　E. 15 y

　　4. What is 35% of a number if 12 is 15% of a number?

　　A. 5

　　B. 12

　　C. 28

　　D. 33

　　E. 62

　　5. A computer is on sale for $1600, which is a 20% discount off the regular price. What is the regular price?

　　A. $1800

　　B. $1900

　　C. $2000

　　D. $2100

　　E. $2200

　　6. A car dealer sells a SUV for $39,000, which represents a 25% profit over the cost. What was the cost of the SUV to the dealer?

　　A. $29,250

　　B. $31,200

　　C. $32,500

　　D. $33,800

　　E. $33,999

　　7. After having to pay increased income taxes this year, Edmond has to sell his BMW. Edmond bought the car for $49,000, but he sold it for a 20% loss. What did Edmond sell the car for?

　　A. $24,200

　　B. $28,900

　　C. $35,600

　　D. $37,300

　　E. $39,200

　　8. If Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa, and Tom worked together to complete it?

　　A. 0.8 days

　　B. 1.09 days

　　C. 1.23 days

　　D. 1.65 days

　　E. 1.97 days

　　9. Find 0.12 ÷12

　　A. 100

　　B. 10

　　C. 1

　　D. 0.01

　　E. 0.001

　　10. Divide x5 by x2

　　A. x25

　　B. x10

　　C. x7

　　D. x3

　　E. x2.5

　　11. Which of the following numbers could be described in the following way: an integer that is a natural, rational and whole number?

　　A. 0

　　B. 1

　　C. 2.33

　　D. -3

　　E. none of the above

　　12. Find the mode of the following list of numbers: 2, 4, 6, 4, 8, 2, 9, 4, 3, 8

　　A. 2

　　B. 3

　　C. 4

　　D. 5

　　E. 6

　　13. In the fraction 3/x, x may not be substituted by which of the following sets?

　　A. {1, 2, 4}

　　B. {-2,-3,-4}

　　C. {1, 3, 7}

　　D. {0, 10, 20}

　　E. {1.8, 4.3}

　　14. Sarah needs to make a cake and some cookies. The cake requires 3/8 cup of sugar and the cookies require 3/5 cup of sugar. Sarah has 15/16 cups of sugar. Does she have enough sugar, or how much more does she need?

　　A. She has enough sugar.

　　B. She needs 1/8 of a cup of sugar.

　　C. She needs 3/80 of a cup of sugar.

　　D. She needs 4/19 of a cup of sugar.

　　E. She needs 1/9 of a cup of sugar.

　　15. At a company fish fry, 1/2 in attendance are employees. Employees' spouses are 1/3 of the attendance. What is the percentage of the people in attendance who are not employees or employee spouses?

　　A. 10.5%

　　B. 16.7%

　　C. 25%

　　D. 32.3%

　　E. 38%

　　16. In a college, some courses contribute more towards an overall GPA than other courses. For example, a science class is worth 4 points; mathematics is worth 3 points; History is worth 2 points; and English is worth 3 points. The values of the grade letters are as follows, A= 4, B=3, C=2, D=1, F=0. What is the GPA of a student who made a “C” in Trigonometry, a “B” in American History, an “A” in Botany, and a “B” in Microbiology?

　　A. 2.59

　　B. 2.86

　　C. 3.08

　　D. 3.33

　　E. 3.67

　　17. There are 8 ounces in a ½ pound. How many ounces are in 7 3/4 lbs?

　　A. 12 ounces

　　B. 86 ounces

　　C. 119 ounces

　　D. 124 ounces

　　E. 138 ounces

　　18. If the value of x and y in the fraction XZ/Y are both tripled, how does the value of the fraction change?