汗...问个PREP数学题里的阅读理解问题...

PREP2

PS108. 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

这题的图我就没画了. 我的问题是: What is the least possible distance 这句是在问: 可能出现的距离中最小的那一个数, 还是问"最不可能出现的数"?

根据答案(B)来看, 题目的意思是前者. 但如果按后者理解, 哪里不对头呢?

是距离啊~这题我做过

如果理解为最不可能出现的数的话，就没有答案选了，因为选项里所有答案都是可能出现的距离。

意思是最小的距离，答案是1/35