Prep PS 题

cherubin · 发表于 2015-3-24 09:16:01

On the number line above, the segment from 0 to 1 has been divided into fifths, as indicated by the large tick marks, and also into sevenths, as indicated by the small tick marks. What is the LEAST possible distance between any two of the tick marks?
A. 1/70
B. 1/35
C. 2/35
D. 1/12
E. 1/7

这题就没有简单点的做法了么。。。

daniel1234 · 发表于 2015-3-24 10:38:28

理解答案的思维方式就好了，这个是最简单的了。

cherubin · 发表于 2015-3-24 23:01:08

daniel1234 发表于 2015-3-24 10:38
理解答案的思维方式就好了，这个是最简单的了。

嘿嘿谢啦~

[原始] Prep PS 题

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