2013-12-26 14:32:37 来源: Collegeboard 责编:楷维留学指南
2013年12月24日SAT真题类型:Mathematics > Standard Multiple Choice 数学选择
Read the following SAT test question and then click on a button to select your answer.
When the positive integer
is divided by
, the remainder is
. What is the remainder when
is divided by
?
(A)![]()
(B)![]()
(C)![]()
(D)![]()
(E)![]()
2013年12月24日SAT考试官方每日一题答案:A
解析:Choice (A) is correct. When the positive integer
is divided by
, the remainder is
. It follows that
is a multiple of
. Therefore,
is also a multiple of
, and so the remainder when
is divided by
is likewise
.
为大家提供与12月24日SAT真题同类题型的一道题目,供各位考生练习:
A woman drove to work at an average speed of
miles per hour and returned along the same route at
miles per hour. If her total traveling time was
hour, what was the total number of miles in the round trip?
(A)![]()
(B)![]()
(C)![]()
(D)![]()
(E)![]()
解析:Let
represent the time it took the woman to drive to work. Since her total traveling time was
hour, the time it took her to return home is
. The distance in miles can be found using the formula
. The distance traveled to work is
, and the return distance is
. Since the distance to work is the same as the return distance,
. Solving for
yields
. So the distance one way is
miles. The total number of miles in the round trip is
, or
miles.
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