If xy=25, x/y=36, for positive numbers x and y, y=?
Choose the correct choice from the following options:
A) 1/2
B) 2
C) 1/3
D) 3
E) 5/6
Very easy question. 2 variables and 2 easy equations.   xy=25 ---&gt; x=25/y - (i)   x/y=36 ---&gt; replacing (i) here ---&gt; 25/(y^2)=36 ---&gt; y^2=25/36---&gt; y=5/6 or -5/6   The question states that x and y are positive integers. Therefore, y=5/6 is the answer.   Answer 5/6.
<result>E</result>
If xy=25, x/y=36, for positive numbers x and y, y=?