SAT官方每日一题：2011年8月29日

　　为了方便广大考生更好的复习，和谐英语网综合整理了SAT官方每日一题，以供各位考生考试复习参考,希望对考生复习有所帮助。愿大家都能取得好成绩，更多有关留学考试的资讯与辅导资料敬请关注和谐英语网留学考试频道。

　　2011年8月29日

　　考试类型:Mathematics > Standard Multiple Choice

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

　　Ten cars containing a total of people passed through a checkpoint. If none of these cars contained more than people, what is the greatest possible number of these cars that could have contained exactly people?

　　A. One

　　B. Two

　　C. Three

　　D. Four

　　E. Five

　　正确答案:D

　　解析:

　　It could not be true that each of the ten cars contained exactly people, as this would give a total of only . If nine of the cars contained exactly people, the remaining car could have no more than people, for a total of only . Continuing in the same way, a pattern develops. If eight of the cars contained exactly people, the remaining two cars could have no more than people each, for a total of only . If seven of the cars contained exactly people, the total number of people could be only . From the pattern, you can see that if four of the cars contained exactly people, and the remaining six cars contained the maximum of people, the total number would be , as given in the question. Therefore, at most four of the ten cars could have contained exactly people.