If 30/x is an integer and 3/x is an integer, which of the following must be true?
I. 10/x is an integer
II. 3/x is an integer
III. 6/x is an integer	Answers.
A) II only B) I only C) III only D) II,III only E) I,III only
The question asks which of the following MUST be true, not COULD be true. The largest possible value of x is 3, GCD of 30 and 3, and if x=3 then ONLY II is true.   II onlynswer: II only
<result>A</result>
If 30/x is an integer and 3/x is an integer, which of the following must be true?
I. 10/x is an integer
II. 3/x is an integer
III. 6/x is an integer