下面是2013年12月3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.

　　There arestudents in a biology class, and onlyof them are seniors. Ifjuniors are added to the class, how many students in the class will not be seniors?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　The correct answer is D

　　Explanation

　　At first, there arestudents in the class, andof them are seniors. It follows that initiallystudents are not seniors. Ifjuniors are added to the class, there will be, or, students in the class who are not seniors.

　　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 stopping distance of a car is the number of feet that the car travels after the driver starts applying the brakes. The stopping distance of a certain car is directly proportional to the square of the speed of the car, in miles per hour, at the time the brakes are first applied. If the car’s stopping distance for an initial speed ofmiles per hour isfeet, what is its stopping distance for an initial speed ofmiles per hour?

　　(A)feet

　　(B)feet

　　(C)feet

　　(D)feet

　　(E)feet

　　The correct answer is D

　　Explanation

　　The stopping distance is directly proportional to the square of the initial speed of the car. Ifrepresents the initial speed of the car, in miles per hour, andrepresents the stopping distance, you have that the stopping distance is a function ofand that, whereis a constant. Since the car’s stopping distance isfeet for an initial speed ofmiles per hour, you know that. Therefore,, and the car's stopping distance for an initial speed ofmiles per hour isfeet.

　　以上就是关于2013年12月3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。