下面是2013年10月13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。SAT官方每日一题是collegeboard每天都会发布的题目，关于SAT考试的三个部分的各个题型。大家和无忧小编一起来看一下这个SAT官方每日一题吧。

　　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.

　　At Central High School, the math club hasmembers and the chess club hasmembers. If a total ofstudents belong to only one of the two clubs, how many students belong to both clubs?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　The correct answer is C

　　Explanation

　　Letstand for the number of students who belong to both clubs. Themembers of the math club can be broken down into two groups: those who are in both clubs (there arestudents in this category) and those who are in the math club only (there arestudents in this category).

　　Themembers of the chess club can also be broken down into two groups:students who are in both clubs andstudents who are in the chess club only.

　　Since a total ofstudents belong to only one of the two clubs, you know that. Solving this equation gives, sostudents belong to both clubs.

　　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：

　　If, then 

　　(A) 

　　(B) 

　　(C) 

　　(D) 

　　(E) 

　　The correct answer is A

　　Explanation

　　If, then by the commutative property of multiplication,. Multiplying each side of the latter equation bygives, so.

　　以上就是关于2013年10月13日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，后面附有一道相关的练习题。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。