0
$\begingroup$

Given: $5x-2y =2y-3x $
$$ \begin{aligned} \text{Quantity A} && \text{Quantity B} \\ x && y \end{aligned}$$

$\bigcirc $ Quantity A is bigger

$\bigcirc $ Quantity B is bigger

$\bigcirc $ Two quantities are equal

$\bigcirc $ The relationship cannot be determined for the information given

The answer is $B$ according to GRE book. Simplifying I get that $2x=y$. I letting $x=0$ get $y=0$. Also let $x=1$ get $y=2$. I believe it is D but need to double check. I have read that any number in GRE is real.

$\endgroup$
  • $\begingroup$ The answer is B according to book. simplifying get that $2x=y$. I letting $x=0$ get $y=0$. Also let $x=1$ get $y=2$. I belief it is D but need to double check. I have read that any number in GRE is real. $\endgroup$ – Tiger Blood Dec 20 '15 at 5:22
  • $\begingroup$ B means "quantity B is bigger". D means "The relationship cannot be determined from the given information" $\endgroup$ – Tiger Blood Dec 20 '15 at 5:37
1
$\begingroup$

$5x-2y=2y-3x$, so $8x=4y$, so $y=2x$. There are a few possibilities. For example, $x=1$ and $y=2$, or $x=-1$ and $y=-2$, or $x=y=0$. If all we know is that $x,y$ are real, then it is not possible to know which is bigger.

$\endgroup$
  • $\begingroup$ so is x or y bigger or are they equal or neither. Still technically have not answer the question. $\endgroup$ – Tiger Blood Dec 20 '15 at 5:38
  • $\begingroup$ ... Therefore the answer is "Cannot be determined" $\endgroup$ – Stella Biderman Dec 20 '15 at 5:41
  • $\begingroup$ So, the relationship cannot be determined. and the Princeton review doesn't know the first thing about math. Thanks!!! Wonder if ets does the same thing. $\endgroup$ – Tiger Blood Dec 20 '15 at 5:43
  • $\begingroup$ @Hugo Books contain typos. $\endgroup$ – user147263 Dec 20 '15 at 5:47
  • 1
    $\begingroup$ There getting paid to do this. It should be perfect. $\endgroup$ – Tiger Blood Dec 20 '15 at 5:48

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.