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SAT数学考试问答题练习题(2)

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  1. What is the sum of all the positive integer factors of 12 ?

  2. The average IQ of 4 people is 110. If three people each have an IQ of 105, what is the IQ of the fourth person ?

  3. Of 60 students in a class 2/3 are girls, and 2/5 of the class are taking music lessons. What is the maximum number of girls that are not taking music lessons?

  4. If 2 n + 1 = 8, what is the value of n ?

  5. In the figure above, AD = AC = CB.

  If the value of y is 28, what is the value of x?

  6. One gallon of fuel mixture contains antifreeze in the ratio of 5 parts fuel to one part antifreeze. To this is added half a gallon of mixture which is one third antifreeze and two thirds fuel. What is the ratio of fuel to antifreeze in the final mixture? (Grid your answer as a fraction: fuel/antifreeze)

  7. Two dials O and P have pointers that start from the vertical position as shown. Pointer O rotates anticlockwise at a rate of 5 degrees per second and pointer P rotates clockwise at 9 degrees per second. How many complete revolutions will P have made when O completes 335 complete revolutions?

  8. What is the total surface area of 2 identical cubes which together have a volume of 1458 units?

  9. N {12,18,2,6}

  P {1,4,2,3}

  If n and p are to be selected at random from sets N and P respectively, what is the probability that n/2p will be a member of set P?

  10. If f(x) = (12 � x)3/2, and n = f(3), what is the value of 2n?

重点单词   查看全部解释    
initial [i'niʃəl]

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n. (词)首字母
adj. 开始的,最初的,

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gallon ['gælən]

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n. 加仑(容量单位)

 
fraction ['frækʃən]

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n. 分数,小部分,破片

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prime [praim]

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adj. 最初的,首要的,最好的,典型的
n.

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triangle ['traiæŋgl]

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n. 三角(形)

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cube [kju:b]

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n. 立方体,立方
vt. 求 ... 的立方

 
probability [.prɔbə'biliti]

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n. 可能性,或然率,机率

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identical [ai'dentikəl]

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adj. 相同的,同一的

 
vertical ['və:tikəl]

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adj. 垂直的,顶点的,纵向的
n. 垂直物

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figure ['figə]

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n. 图形,数字,形状; 人物,外形,体型
v

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