下面是2011年7月18日的SAT官方每日一题的内容，是关于数学方面的，题型是选择。选择是SAT考试中非常有特点的一个题型，下面我们就来看看这个SAT官方每日一题的具体内容，看看有哪些是值得参考借鉴的地方。
SAT官方每日一题之数学---选择：
Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
If the length and width of rectangle are percent less and percent less, respectively, than the length and width of rectangle , the area of is equal to what percent of the area of ?
Answer Choices
(A)
(B)
(C)
(D)
(E)
The correct answer is A
Explanation
Let and represent the length and width, respectively, of rectangle . Then and represent the length and width, respectively, of rectangle . Simplifying and gives and for the length and width, respectively, of rectangle . The area of rectangle is . The area of rectangle is , or . Therefore, the area of rectangle is percent of the area of rectangle
下面为大家提供一些和这些SAT官方每日一题相似的题目，供大家练习：
In the xy-coordinate (坐标) plane above, the line contains the points (0,0) and (1,2). If line M (not shown) contains the point (0,0) and is perpendicular (垂直) to L, what is an equation of M?
(A) y = -1/2 x
(B) y = -1/2 x + 1
(C) y = - x
(D) y = - x + 2
(E) y = -2x
答案： (E)
以上就是关于SAT官方每日一题中数学部分的详细内容，包括了题目和选项以及答案。大家可以在备考SAT的过程中关注SAT每日一题的内容，这样就可以更好有不间断的练习，也就能在日积月累的过程中得到提高。