http://groups.yahoo.com/group/4gmat/ 4gmat - GMAT Online Preparation Fri, 06 Nov 2009 14:35:13 GMT 4GMAT - GMAT Classes, Discussion Forums http://groups.yahoo.com/group/4gmat/message/1636 http://groups.yahoo.com/group/4gmat/message/1636 Hi The given question is a Data Sufficiency question on divisibility and properties of Prime Numbers Question When Y is divided by 2, is the remainder 1? 1. Thu, 05 Nov 2009 09:54:37 GMT Hayk Gevorgyan http://groups.yahoo.com/group/4gmat/message/1635 http://groups.yahoo.com/group/4gmat/message/1635 The answers are "D" for both questions.   In the first stimulus we have that OF THOSE SEVERELY INJURED 80% did not wear seat belts. In order to conclude that Thu, 05 Nov 2009 09:49:27 GMT maulat.mba@... http://groups.yahoo.com/group/4gmat/message/1634 http://groups.yahoo.com/group/4gmat/message/1634 Guys what do you think? If 20% of the people at a college party were men who were wearing red t-shirts, and 60% of the men at the party were not wearing redt Thu, 05 Nov 2009 09:49:22 GMT maulat.mba@... http://groups.yahoo.com/group/4gmat/message/1633 http://groups.yahoo.com/group/4gmat/message/1633 Guys, I solved this problem but I don't have the answer to verify. What do you'll think... At a college party, 70% of the women are wearing red t-shirts. If Thu, 05 Nov 2009 09:49:19 GMT maulat.mba@... http://groups.yahoo.com/group/4gmat/message/1632 http://groups.yahoo.com/group/4gmat/message/1632 Hi, I would go with 1) D and 2) D. My explanation behind 1) D is if more than half of the drivers are front-seat passengers in the survey were wearing seat Thu, 05 Nov 2009 09:49:07 GMT mahesh Kumaran K http://groups.yahoo.com/group/4gmat/message/1631 http://groups.yahoo.com/group/4gmat/message/1631 Hi guys, Please help me out with this DS questions. 1. Are X and Y both positive? Statement 1: 2x - 2y = 1 Statement 2: x/y > 1 Answer is C. 2. Does the line k Fri, 30 Oct 2009 06:50:55 GMT Moises Braun http://groups.yahoo.com/group/4gmat/message/1630 http://groups.yahoo.com/group/4gmat/message/1630 The answer to the first question is B. 80% of drivers severely injured while using no seatbelt is a lot ONLY if less than 80% of drivers do NOT wear a Thu, 29 Oct 2009 08:53:16 GMT rowshanara.islam http://groups.yahoo.com/group/4gmat/message/1629 http://groups.yahoo.com/group/4gmat/message/1629 plz someone help me with these two questions. A recent survey of all auto accident victims in Dole County found that, of the severely injured drivers and Thu, 29 Oct 2009 08:52:31 GMT Satya Ramesh http://groups.yahoo.com/group/4gmat/message/1628 http://groups.yahoo.com/group/4gmat/message/1628 Hi Sharmin, 1. The reason why A is wrong is because 'it' does not refer to anything. The 'they' in option B clearly refers back to some Americans. 2. The Mon, 19 Oct 2009 06:51:04 GMT Said Boufatis http://groups.yahoo.com/group/4gmat/message/1627 http://groups.yahoo.com/group/4gmat/message/1627 Ok. I want to finish the controverse about what we mean by diagonals. In my post I wrote that a diagonal is just any segment line unifying two vertex of a Fri, 16 Oct 2009 06:12:27 GMT maverickmauka http://groups.yahoo.com/group/4gmat/message/1626 http://groups.yahoo.com/group/4gmat/message/1626 To calculate diagonals of an n-sided polygon, use the formula n(n-3)/2. In this case the number of sideds of the polygon is 63. No of diagonals = 63(63 - 3) / Fri, 16 Oct 2009 06:10:58 GMT Shankar Ram H http://groups.yahoo.com/group/4gmat/message/1625 http://groups.yahoo.com/group/4gmat/message/1625 Let us start answering this by taking an example. Consider a square ABCD. From A, only one diagonal can be drawn - AC. From B, only one diagonal can be drawn - Fri, 16 Oct 2009 06:08:22 GMT Said Boufatis http://groups.yahoo.com/group/4gmat/message/1624 http://groups.yahoo.com/group/4gmat/message/1624 The number of diagonals is just the numbers of segments linking two vertex so C(63,2)=63*62/2=1953 (E) 2009/10/15 4GMAT - GMAT Classes, Discussion Forums Fri, 16 Oct 2009 06:07:41 GMT Suketu Shah http://groups.yahoo.com/group/4gmat/message/1623 http://groups.yahoo.com/group/4gmat/message/1623 Solution: Let’s see this,   Sides                #of diagonals Triangle (3)                   0 Square (4) Fri, 16 Oct 2009 06:07:05 GMT gaurav sharma http://groups.yahoo.com/group/4gmat/message/1622 http://groups.yahoo.com/group/4gmat/message/1622 I think it should be 3906, as to find diagonals for this it will be 63*62 which comes out to be 3906.Please explain if my approach and answer is wrong.