## Search found 161 matches

Statement 2... Imagine Rectangle. All angels are equal but one cannot have all 4 vertexes on a circle. Insuff. C . Agreed that statement 2 is insufficient. However, a rectangle may not be the right example. Even a rectangle is a cyclic quadrilateral - i.e., a circle can always be drawn touching the...

- by 4GMAT_Mumbai

Fri Apr 27, 2012 6:52 am- Forum: Data Sufficiency
- Topic: P is a polygon
- Replies:
**4** - Views:
**870**

Hi Rahul, The rare questions on reflections usually involve only the x - axis, y - axis, x = y line and x = -y line. I doubt if reflections on any other line will be asked. Reflection of (a,b) on x-axis will be (a,-b) Reflection of (a,b) on y-axis will be (-a,b) Reflection of (a,b) on x=y will be (b...

- by 4GMAT_Mumbai

Tue Oct 11, 2011 10:21 pm- Forum: Data Sufficiency
- Topic: Reflection of lines- Are they actually tested?
- Replies:
**2** - Views:
**647**

Hi zaarathelab,

I am afraid there is no drastically different way than the one that you have mentioned ...

Perhaps just a small variation would be to calculate (1.08)^2 = 1 + .0064 + .16 = 1.1664 and go from there ...

Thanks.

- by 4GMAT_Mumbai

Tue Oct 11, 2011 10:08 pm- Forum: Data Sufficiency
- Topic: GMATPREP:Bank Account problem
- Replies:
**4** - Views:
**2591**

1. If a, b, c are integers such that b > a, is b + c > a? (1) c > a (2) abc > c Experts, what is the shortest possible to solve the above? I took 4 minutes on the first one, especially because of the 2nd statement. The question boils down to finding out whether c > 0 or c <= 0. In my opinion, the b...

- by 4GMAT_Mumbai

Tue Oct 11, 2011 6:19 am- Forum: Data Sufficiency
- Topic: GMAT PREP:Good question on Inequalities
- Replies:
**11** - Views:
**1400**

Hi,

Handled in this thread way back in 2008 ... http://www.beatthegmat.com/standard-dev ... t8560.html

Guess it is beyond the scope of GMAT

Thanks.

- by 4GMAT_Mumbai

Sat May 07, 2011 12:51 am- Forum: Problem Solving
- Topic: cookies with SD
- Replies:
**1** - Views:
**607**

Hi,confused mind wrote:What is the option to buy these tests in Hyderabad, India. Is there some option to buy the tests online and give the test on internet?

Try this ... http://www.manhattangmat.com/storeitems ... 81&catid=4 I thought this might be just what you are looking for.

Thanks !

- by 4GMAT_Mumbai

Thu May 05, 2011 8:31 pm- Forum: GMAT Strategy
- Topic: Manhattan tests
- Replies:
**2** - Views:
**873**

Hi,

I may not be the best person to pick from this basket as I have not gone through all of them.

However, I have gone through MGMAT CR and found it to be very useful in terms of techniques.

Thanks.

- by 4GMAT_Mumbai

Wed May 04, 2011 9:48 pm- Forum: GMAT Strategy
- Topic: CR Best strategdy in last 20 days
- Replies:
**3** - Views:
**862**

Hi,

The median is (b+c)/2.

Let us consider each of the options.

A. The median could be (a+c)/2 if a = b.

B. It is (b+c)/2

C. It could be (a+d)/2 if a=b and c=d

d. It could be (b+d)/2 if c=d

E. It cannot be (c+d)/2 as b can never be equal to d.

Is it E?

Thanks. Hope it helps.

- by 4GMAT_Mumbai

Wed May 04, 2011 10:08 am- Forum: Data Sufficiency
- Topic: Statistics
- Replies:
**2** - Views:
**624**

Hi, Statement 1: If x = 1, y = 11 If x = 2, y = 8 (I am assuming x2 stands for x^2) We are getting different values of y - depending on the value of x. Hence, insuff Statement 2: 3 - y = -11 or 11 y = 14 or -8 We are getting different values of y. Hence, insuff. Combining both 1 & 2: If y = -8, 3|x2...

- by 4GMAT_Mumbai

Wed May 04, 2011 10:04 am- Forum: Data Sufficiency
- Topic: MGMAT CAT 3
- Replies:
**4** - Views:
**989**

Hi, I guess you have to move CR to 'Top Priority' over this week in order to stand a chance at a very good GMAT score. Some observations: 1. Try doing ONLY CR over the next two or three days. I suppose you must be pretty good at the other sections of GMAT. The human mind does a good job of coaxing y...

- by 4GMAT_Mumbai

Wed May 04, 2011 6:01 am- Forum: GMAT Strategy
- Topic: CR Best strategdy in last 20 days
- Replies:
**3** - Views:
**862**

Hi, Question stem says 588 college teachers (1400 * 0.42) considered engaging in Res an essential goal. Statement 1: Let w be the number of women teachers. 0.5 (w) + 0.36 (1400-w) = 588. w can be figured out. Let us not spend time finding w ... Hence, suff Statement 2: We realize that 300 women and ...

- by 4GMAT_Mumbai

Wed May 04, 2011 4:42 am- Forum: Data Sufficiency
- Topic: GMAT Prep Question
- Replies:
**4** - Views:
**776**

ques In partucular 8-hour perid, how many reveloutions did the motor of certain generator make? 1 the motor make 50 reveloutions in every second that it ran in that period 2 the generator ran total 20 mins out of every hour of that period Stmt 1: Not Suff. We do not know how long the motor ran. Stm...

- by 4GMAT_Mumbai

Mon May 02, 2011 9:28 pm- Forum: Data Sufficiency
- Topic: Ds
- Replies:
**1** - Views:
**538**

Hi, At start, # of bacteria = x After 30 seconds, # of bacteria left = (2/3) * x After 60 seconds, # of bacteria left = (2/3) * (2/3) * x After 90 seconds, # of bacteria left = (2/3) * (2/3) * (2/3) * x After 120 seconds, # of bacteria left = (2/3) * (2/3) * (2/3) * (2/3) * x = (16/81) x Those kille...

- by 4GMAT_Mumbai

Tue Mar 08, 2011 6:52 pm- Forum: Problem Solving
- Topic: Antibiotic
- Replies:
**3** - Views:
**2623**

Hi, Interesting Q ... Thanks ! Question stem says: p = <a constant k> * e e = <a constant m> * i So, p = k * m * i = <a new constant n> * i Statement 1: Gives relationship between e and i. Helps us find m. Great. But, does not take us anywhere as far as either k or p is concerned. Hence, insuff. Sta...

- by 4GMAT_Mumbai

Wed Mar 02, 2011 7:56 pm- Forum: Data Sufficiency
- Topic: index ratio relationship
- Replies:
**2** - Views:
**1193**

Hi, Interesting Q ... Thanks ! 1. n is an odd number n^3 - n = (n-1) * n * (n+1) = Product of three consecutive integers We know that n is an odd number. So, the number before and after n must both be even numbers. So, n^3-n will definitely be divisible by 4. Suff 2. n^2 + n = n (n+1) is divisible b...

- by 4GMAT_Mumbai

Wed Mar 02, 2011 7:46 pm- Forum: Data Sufficiency
- Topic: If n is a positive integer, is n^3 - n divisible by 4?
- Replies:
**12** - Views:
**3119**