Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized for You

we will pick new questions that match your level based on your Timer History

Track Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

Statement 1: xy=6 => 5x = (6/x) + 7 => 5x^2 - 7x - 6 =0 => (x-2)(5x+3)=0 => x = 2 or x= -3/5. So the solutions sets are (x,y) = (2,3) and (-3/5,-10). In case 1, x-y<0 and in case 2, x-y>0. Insufficient.

Statement 2: x and y are consecutive integers with the same sign. Take x=k and y=k+1 => 5k = (k+1) + 7 => k=2. So one possible solution is x=2,y=3. Take y=k and x=k+1 => 5(k+1) = k + 7 => k = 1/2. So no solution possible in integers. Therefore x-y<0. Sufficient.

=> x = 2 or x= -3/5. So the solutions sets are (x,y) = (2,3) and (-3/5,-10). In both cases, x-y>0. Sufficient.

isn't st-1 insufficient because of the above solution set? if (x,y) = (2,3), then x-y=2-3 = -1. a 'no' if (x,y) = (-3/5,-10), then x-y=-3/5+10= 47/5. a 'yes'

Bunuel, I checked The link you gave . There m has to be greater than n. But here in this question, it is given that x and y are consecutive. Meaning of consecutive from google indicates that y follows x..

con·sec·u·tive /kənˈsekyətiv/ Adjective Following continuously. In unbroken or logical sequence. Synonyms successive - sequential - running - sequent - serial

So y has to be bigger than x right? _________________

hope is a good thing, maybe the best of things. And no good thing ever dies.

Bunuel, I checked The link you gave . There m has to be greater than n. But here in this question, it is given that x and y are consecutive. Meaning of consecutive from google indicates that y follows x..

con·sec·u·tive /kənˈsekyətiv/ Adjective Following continuously. In unbroken or logical sequence. Synonyms successive - sequential - running - sequent - serial

So y has to be bigger than x right?

Google is not conducting the test, GMAC does. _________________