下面是2013年6月12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.

　　A geologist hasrocks of equal weight. Ifrocks and a-ounce weight balance on a scale withrocks and a-ounce weight, what is the weight, in ounces, of one of these rocks?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　The correct answer is C

　　Explanation

　　Letequal the weight of each rock, in ounces. The weight on one side of the scale isounces and the weight on the other side isounces. Since the two weights balance, you can write the equation. Solving this equation yields.

　　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：

　　,,,,, ...

　　The first term of the sequence above is. Which of the following could be the formula for finding theterm of this sequence for any positive integer?

　　(A) 

　　(B)

 　　(C) 

　　(D) 

　　(E) 

　　The correct answer is B

　　Explanation

　　You do not know the value of theterm or theterm of the sequence, but you do know the values of the,, andterms. The correct formula must giveas the value of theterm,as the value of theterm, andas the value of theterm. Choice E,, gives, not, as the value of theterm. Choice A,, gives, not, as the value of theterm. Choice C,, gives, not, as the value of theterm. Choice D,, gives, not, as the value of theterm. This leaves choice B,, which gives the correct values for the,, andterms of the sequence.

　　以上就是关于2013年6月12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。