x and y are positive integers. If 1/x + 1/y < 2, which of the following must be true?
Select the correct option
A) x + y > 4  B) xy>1  C) x/y + y/x < 1  D) (x - y)^2 > 0  E) None of the above
since x and y are both +ive int, x*y&gt;1... only exception being x=y=1 as it is not given they are different integers...   however it is given 1/x +1/y&lt;2.. this cannot be true if x=y=1.... so one or both have to be &gt; 1   ANSWER:xy&gt;1
<result>B</result>
x and y are positive integers. If 1/x + 1/y < 2, which of the following must be true?