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:

if Z is closer to 10, then it will pull closer to 10, while if x is furhter apart the avg is going to pull closer to X....

say if X is 5, then 10+5=15/2= 7.5

well we are told in I) that the Z is closer to 10 than to X...so

Z has to be greater than 7, cause if i z was say 7, it will be only 2 points away from 5 and 3 points away from 10...(1) tells us that z is closer to 10, than it is to X...so probably z=8 or 9 or something....

(II) x can be 1 then you will see the avg of 10 and x is 5.5, but z=5.

If z=9 and x=8, Average of X and 10 will be equal to 9 which is equal to z. The question clearly asks if z will be greater than the average of x and 10. So am not too sure if A is sufficient. If it were greater than or equal to then , your argument is correct.

If z=9 and x=8, Average of X and 10 will be equal to 9 which is equal to z. The question clearly asks if z will be greater than the average of x and 10. So am not too sure if A is sufficient. If it were greater than or equal to then , your argument is correct.

Hi Gmatsoon,

The statement 1) clearly says 'z is closer to 10 than to x' which means, you cannot consider z=9, x=8 as it would mean it is equidistant from x and 10 (by a value of 1). _________________