If 20x = 49y, which of the following must be true?
I. x > y
II. x^2 > y^2
III. x/7 is an integer Select:
A) I only
B) II only
C) III only
D) I and III
E) None
For x = 1,y = 20/49 and x&gt;y. However, for x=-49,y = -20 and y&gt;x. I is clearly not the right answer.   For y=0, x=0. Thus, even II doesn't hold good.   x/7 = 7y/20. For y=0, x/7 is an integer, however for y=1, it is not.   None of the options are (must be)true   ANSWNoneR:None
<result>E</result>
If 20x = 49y, which of the following must be true?
I. x > y
II. x^2 > y^2
III. x/7 is an integer