Hi,
I got the below problem on practice test 2 in the GMAT Test prep softwarre.
I know you can plug in numbers and solve them, but is there a quick way to finding the answer to this?
Any insights would be appreciated.
If x and y are positive, which of the following must be greater than 1/(root x+y)?
I. (root x+y) / 2x
II. (root x) + (root y) / (x+y)
III. (root x) - (root y) / (x+y)
THank you sooo very much.
Karen
Quick way to do this?
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Karen,
I think the problem has been posted before. You can use the search function.
When i solved this one using my approach I took x=16 y=9 and their sum would also be a perfect square which made the computations easier.
Let me know if you are not able to find it.
Regards,
Cramya
I think the problem has been posted before. You can use the search function.
When i solved this one using my approach I took x=16 y=9 and their sum would also be a perfect square which made the computations easier.
Let me know if you are not able to find it.
Regards,
Cramya
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- Newbie | Next Rank: 10 Posts
- Posts: 6
- Joined: Thu Nov 13, 2008 10:57 am
I tried searching around for it, but maybe I'm typing in the wrong keywords? Would you mind linking the post if you know where it is? Thanks!
https://www.beatthegmat.com/gmatprep-q-t16958.html
https://www.beatthegmat.com/gmapt-prep-s ... 16791.html
https://www.beatthegmat.com/gmapt-prep-s ... 16791.html
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