2017年10月28日SAT官方每日一题---数学选择.

　　为了让我们更好的适应sat考试，sat官网每天都会有sat官方每日一题，下面是小编为您整理的2015年10月sat官方每日一题，是数学选择，让我们一起来看一看这道数学选择吧。

　　Read the following SAT test question and then click on a button to select your answer.

　　Every student who studies art in a certain school receives exactly one of the grades A, B, C, or D. If 1/5 of the students receive A's, 1/4 receive B's, 1/2 receive C's, and 10 students receive D's, how many students in the school study art?

　　(A) 30

　　(B) 60

　　(C) 100

　　(D) 200

　　(E) 500

　　答案：D

　　解析：

　　The students who receive A's, B's, and C's account for (1/5) + (1/4) + (1/2) of the students, that is, 19/20. This leaves 1/20 of the students receiving D's. You know that 10 students receive D's, so 10 is 1/20 of the total. This means that the total number of students is 10 times 20, or 200.

　　上面是小编为您整理的2015年10月sat官方每日一题，是数学选择，为了让我们更好的适应sat考试，sat官网每天都会有sat官方每日一题，让我们一起来看一看这道数学选择吧。