f (x + y)/(2x + y) = 4/5, then find (2x + y)/(3x + y) ? Choose the correct choice from the following answers.
A) 5/9 B) 5/6 C) 5/7 D) 5/4 E) 5/1
(x + y)/(2x + y) = 4/5   =&gt; 5x + 5y = 8x + 4y =&gt; y = 3x   Now, (2x + y)/(3x + y) = 5x/6x = 5/6.   Answer: 5/6
<result>B</result>
f (x + y)/(2x + y) = 4/5, then find (2x + y)/(3x + y) ?