nkap

Is n an integer? 1. n^2 is an integer 2. sqrt (n) is an integer Shall post the OA after getting a few thoughts!

answer is A...Refer to a good post on subjuntive here... http://www.www.urch.com/forums/showthread.php?t=35396

Register on mba.com. You should be able to register for dates in 2006 after Oct 1.

n^2 is divisble by 72 i.e. 2*2*3*3 *2 so n has to be definately divisible by pairs 2*3. Also, there is an extra prime factor 2 still left in 72. If n^2 is divisible by this extra 2, then it must also be divisible by an extra 2^2. Therefore, the highest number is 2*2*3! To verify, lowest possible value of n^2 where n is an integer is 144 therefore corresponding highest n is 12.

I too had problems with GmatPrep. It seems GMATprep has bugs in tracking the questions delivered as part of a given test! In my case it messed up the list of questions which were part of my test and gave me a different set of questions at time of review. However, at the time of scoring it seemed to work well. My suggestion is to work through the test and review questions in one session. DO NOT save and exit to minimise risk of loosing record of your set of questions!!!

What's the source of this question?

C D E D D E A - It is hard to explain all questions. Once you post the OAs, we can discuss specific questions!!!

Grammatically, E looks most sound. What's the OA?

I am also getting 4. However, I looked at the highest powers of 2 and 5 which divide 24!. In case of 5 the highest power is 4. However, in case of 2 its 21. Therefore, the lower of the two should be the highest power of 10 i.e. 4.

3,0 - 1 way 2,1 - 3 ways 1,2 - 3 ways 0,3 - 1 way Total 8

Men in (7-1)! * Women in 7! ways in empty spaces btw men! 6! * 7! One variation of this can be when all men and women are alike. I guess in this case there is only 1 arrangement possible!!! None of the answers match the given options :(

Agree with 48.

1. I counted cases for each of the hundreds digit options (7,8 and 9). Hundred digit 7 Middle number odd = 1*4*3 Middle number even= 1*5*4 Total=28 Similarly for unites digit 9 there are 28 options. Hundreds digit 8 middle digit odd = 1*5*4 middle digit even = 1*3*5 Total=35 Total numbers = 28*2+35=91 Long way...can someone suggest a quicker way!!! 2. Adding the units places gives 40*1...carry forward 4...adding tens places gives 39*1+4=43...thus 3 is the answer... 3. Question stem is not complete... 4. It will be divisible by 8 if n is even or (n+1) is a multiple of 8 i.e. 48+12=60, thus answer is 60/96=62.5% 5. B should be the answer. In A, multiplication by 2 can increase the number of prime factors thus the prime factors of n can be 3 or 4, where as in B we just increase the power of prime factors and not the number of prime factors!!! ***Type in Q1...its "hundreds digit 9" instead of "units digit 9"!!!

Subzero... consider...to be, consider...as, etc. are incorrect idioms in GMAT space. Only 'consider...' by itself is considered (without to be or as!!!) right. Was wondering if there are any exceptions to this rule?

C seems to be the one. Responds immediately to changes in insects direction...contradicts second hypotesis; it still stops frequently...hypothesis one can be the reason for this therefore supports hyp. 1.

I was having problems with my timing as well. Did some analysis and came up with a strategy which I am tring to perfect now. I try not to spend more minutes than twice the number of questions on a given RC. If there are 3 questions I spend max. 6 minutes and so on. Out of the total time allocated for a given RC, I give less than half the time to reading /taking notes. For example, if there are 4 questions i.e total time 8 min therefore reading/note taking time is approx. 3-3.5min. This seems to be working well for me. However, I am not too sure if taking notes after reading is worth the time!!! Would appreciate some comments from the group on this.

My picks are E and D too.

I am also getting 1/2 Total ways = 5! = 120 Red 1st (Green 2-5)= 1*4*3*2*1 = 24 Red 2nd (Green 3-5)= 3*1*3*2*1=18 Red 3rd (Green 4 or 5) = 3*2*1*2*1= 12 Red 4th (Green 5th)= 3*2*1*1*1=6 Total favourable = 60 Prob=60/120 Can be fairly nerve racking to go thru these calculations in test conditions !!! Is there a shorter way to approach the counting of favourable cases in such questions?

Sure score800...in fact I was wondering where the © appeared from!!!

1. A special Japanese green tea called genmai-cha contains brown rice and is considered as a delicacy fit for a gourmet by most Japanese, though it is virtually unavailable outside Yokohama. (A) A special Japanese green tea called genmai-cha contains brown rice and is considered as a delicacy fit for a gourmet by most Japanese, though it is virtually unavailable outside Yokohama. (B) Considered to be a delicacy fit for a gourmet by most Japanese, genmai-cha is a special green tea that contains brown rice, virtually unavailable outside Yokohama. © A special Japanese green tea called genmai-cha contains brown rice and is considered a gourmet delicacy by most Japanese, though it is virtually unavailable outside Yokohama. (D) Most Japanese consider genmai-cha, a special green tea which contains brown rice, as a delicacy virtually unavailable outside Yokohama.（C） (E) Though virtually unavailable outside Yokohama, most Japanese consider genmai-cha, a special green tea that contains brown rice, a gourmet delicacy. Shall post OA soon!!! BTW...are the questions in SC1000 retired GMAT questions? Note: Please disregard the © at the end of choice D.

D looks good to me. Using a different reasoning...could be completely wrong though!!! Evidence suggests that the % of flu is LESS THAN 9% when the dose is 1500mg. Therefore, we cannot be sure about the exact drop in flu cases (as mentioned in c). OA? Oops...just saw Andres response and the OA on second page!!!

Looks like A is best for both.

Though I have doubt about the use of 'would' in B, it seems to be the best choice...announcing & creating are parallel only on B.

Great stuff...all the bests. Can you give some 'indication' on the type of probability...and the other challenging ones you encountered in Quant.

I go with E. First one's a premise and second one a consideration...both supporting the conclusion that "Delta's operation now causes less fossil fuel to be consumed than it did formerly". As for A, first statement doesn't conclude. It's just stating that Delta has switched technologies.