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SAT数学练习题 含详细答案及解析(2)

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下面天道小编搜集整理了SAT数学练习题,含详细答案及解析,希望能够帮助大家更好地备考SAT数学考试。

1. The distance from town A to town B is five miles. C is six miles from B. Which of the following could be the distance from A to C?

I 11

II 1

III 7

A. I only

B. II only

C. I and II only

D. II and III only

E. I, II, or III.

Correct Answer: E

解析:

Do not assume that AB and C are on a straight line. Make a diagram with A and B marked 5 miles apart. Draw a circle centered on B, with radius 6. C could be anywhere on this circle. The minimum distance will be 1, and maximum 11, but anywhere in between is possible.

2. √5 percent of 5√5 =

A. 0.05

B. 0.25

C. 0.5

D. 2.5

E. 25

Correct Answer: B

解析:

We can write the statement mathematically, using x to mean ‘of’ and /100 for ‘per cent’. So ( √5/100) x 5√5 = 5 x 5 /100 = 0.25

3. If pqr = 1 , rst = 0 , and spr = 0, which of the following must be zero?

A. P

B. Q

C. R

D. S

E. T

Correct Answer: D

解析:

If pqr = 1, none of these variable can be zero. Since spr = 0 , and since p and r are not zero, s must be zero. (Note that although rst = 0, and so either s or t must be zero, this is not sufficient to state which must be zero)

以上便是天道小编为大家整理的SAT数学练习题的相关介绍,每道题目后面都有答案和详细的解析,希望对大家有所帮助。更多SAT考试相关资料尽在天道教育网SAT考试频道,天道小编祝大家都能取得理想的SAT数学考试成绩!

重点单词   查看全部解释    
diagram ['daiəgræm]

想一想再看

n. 图解,图表
vt. 用图解法表示

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assume [ə'sju:m]

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vt. 假定,设想,承担; (想当然的)认为

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variable ['vɛəriəbl]

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adj. 可变的,易变的
n. 变量,易变的东

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circle ['sə:kl]

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n. 圈子,圆周,循环
v. 环绕,盘旋,包围

 
sufficient [sə'fiʃənt]

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adj. 足够的,充分的

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statement ['steitmənt]

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n. 声明,陈述

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radius ['reidiəs]

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n. 半径,桡骨,半径范围,辐射区

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关键字: SAT数学 练习题

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