Edvento

Nicely done by gradeconomist. I have to disagree with sahaldar and agree with you. But only partially :). The sides don't need to equate like gradeconimist has said. We can shift it like sahaldar has said. That will change magnitudes of all sides except for a. The simplest thing that would help us reach the answer is the Pythagoras theorem. So, taking the que from gradeconomist where the quadrilateral is divided in two, we can use Pythagoras theorem on the two triangles that have a common hypotenuse. So, a^2 + b^2 = c^2 + d^2 => a^2 - c^2 = d^2 - b^2 Done, answer C. I guess this is called group study :). Regards, Shouvik.

Hi Upasana, I did the following: 1. Theory and practice from Manhattan GRE 2. Practice exercises from the ETS (that's needless to say) 3. Once you buy Manhahhat GRE book, you'l get a set of 6 practice tests. 4. I tried Kaplan as well. Found that ok. 5. I didn't like Princeton, Barron's, Arco. (My personal choice). I feel once you do these, you'll be brimming with confidence. Regards, Shouvik.

Hi sanaus, Do go through the Manhattan GRE books on Text completion and Sentence equivalence. The way things are explained is just awesome. The book also has 500 high frequency and 500 moderate frequency GRE words. Regards, Shouvik.

Hi Little Bear1, I would recommend the series of 8 books by Manhattan. Those come with 8 practice tests as well. Pus the ETS guide will be your bible here. Try this approach and see if it works: 1. Start with ETS guide. 2. Practice vocab. The Manhattan guide has a list of most frequent words. You have to know at least 500 MFWs. 3. The Manhattan books 4. Practice tests. I feel if you do this, it will be enough. Regards, Shouvik.

I agree with Sahaldar here. Regards, Shouvik.

Hi Ali, Fire away. I believe this is the right forum. Let us all help one another. Regards, Shouvik.

Wow write2rajul, Thats a great collection. I recommend the Manhattan series of 8 books. I found them really great. Plus you get 6 free practice tests and that too good ones. Regards, Shouvik.

Thanks LightningRod, Glad I could help. One pointer is to always think of removing the sqrt when you think of comparing or simplifying quantities. So here I did just that. I took the sqrt(x) to the other side because I can easily simplify sqrt(x+y) and sqrt(x)+sqrt(y) rather than sqrt(x+y) - sqrt(x) and sqrt(y), as in the latter case, the left hand side becomes difficult to manage. Regards, Shouvik.

Here is an algebraic solution: http://www.www.urch.com/forums/attachments/gre-math/6485-math-question-soln.jpg Regards, Shouvik.

True, but the new GRE is good in 1 way. No more of the huge vocab list. That's such a relief. I like the text completion and sentence equivalence sections; vocabs in context surely made it a lot easier. Shouvik.