Search found 20 matches


I sort figured it out , it doesn't matter how many children has both. We know 120 children that has to have fever or inflammation or both, of 20 has fever, the rest 100 will have only inflammation, we don't care if we have 100 people or 120 people have inflammation, we only care that we know 100 chi...

by Reader

Sat Mar 21, 2009 11:58 pm
Forum: Data Sufficiency
Topic: Gmatprep PT1 question
Replies: 4
Views: 1361

Got 720 Today, Q49 V40 and want to share my experience.

I just took it today and came back with a 720, a score I feel is good enough. I didn't study long, only 3 weeks, but I was studying full time, which is most of the time when I was awake. I took MGMAT free CAT on Monday, got 650, GMAT Prep test 1 on Wednesday, got 740, and GMAT Prep on Thursday got 7...

by Reader

Sat Mar 21, 2009 6:08 pm
Forum: I just Beat The GMAT!
Topic: Got 720 Today, Q49 V40 and want to share my experience.
Replies: 4
Views: 1802

A is not suf, because it can 1 & 3 or 2 & 2. A and B together is Suf, because 2^2 - 2^2 = 0 while 3^2 - 1^2 = 8 Now I think B alone is suf as I cannot find any other two pos ints other than 3 and 1 that X^2-Y^2 = 8. But I am not sure. I would guess B on this one, but it could be C, I am not sure. R...

by Reader

Fri Mar 20, 2009 3:49 pm
Forum: Data Sufficiency
Topic: Sum of positive integers
Replies: 8
Views: 1200

GMAT Tomorrow!~!!!! What should I bring other than ID??

First time taker here. I will be taking it tomorrow, what I should and should not bring to test center? And any other things you think I need to know!! Thanks.

:roll: :wink:

by Reader

Fri Mar 20, 2009 2:51 pm
Forum: GMAT Strategy
Topic: GMAT Tomorrow!~!!!! What should I bring other than ID??
Replies: 2
Views: 1158

PAB2706 wrote:i chose C bcos i thot in B environmental factors are out of scope of the argument. the statistics given in C someway sticks to the arg.
If the question ask you what conclusion to draw from it, this will indeed be out of scope, but as something to support the argument it's not a concern.

by Reader

Fri Mar 20, 2009 12:50 pm
Forum: Critical Reasoning
Topic: Life expentancy
Replies: 8
Views: 7264
by Reader

Fri Mar 20, 2009 12:46 pm
Forum: Data Sufficiency
Topic: Gmat Prep Remainder problem
Replies: 2
Views: 889

A is not suf, because it can 1 & 3 or 2 & 2.

A and B together is Suf, because 2^2 - 2^2 = 0 while 3^2 - 1^2 = 8

Now I think B alone is suf as I cannot find any other two pos ints other than 3 and 1 that X^2-Y^2 = 8. But I am not sure.

I would guess B on this one, but it could be C, I am not sure.

by Reader

Fri Mar 20, 2009 11:57 am
Forum: Data Sufficiency
Topic: Sum of positive integers
Replies: 8
Views: 1200
by Reader

Fri Mar 20, 2009 11:44 am
Forum: Data Sufficiency
Topic: Gmat Prep Remainder problem
Replies: 2
Views: 889

The question really asking you which one DOES NOT support the argument. And C is the only one, all other 4 support the argument, which is "counter some reasonable objection to the interpretation advanced above"

by Reader

Wed Mar 18, 2009 10:57 pm
Forum: Critical Reasoning
Topic: illegal software copying
Replies: 6
Views: 1028

even after read the explanation, I still think this is the hardest GMAT reading comprehension question I've ever seen. :D :roll: :twisted:

by Reader

Wed Mar 18, 2009 10:30 pm
Forum: Problem Solving
Topic: their current ages
Replies: 3
Views: 2864

First step is to get number of student that take all three class. which is 100-(42+34+58-8-13-18) =5 Now out of 8 students who are science and law graduates and 18 students who are are commerce and science graduates there is 5 of them who took all three so they are counted twice. so 42 - (18 + 8 - 5...

by Reader

Wed Mar 18, 2009 10:19 pm
Forum: Problem Solving
Topic: Tough 3 Sets Prob
Replies: 3
Views: 968

Ian you are amazing! Thanks for the answer, I guess I will stick with plug for this type of question. I doubt I will able to do what you did in less than 5 mins, even if I know it.

by Reader

Wed Mar 18, 2009 7:55 pm
Forum: Data Sufficiency
Topic: Gmat Prep PT1 question
Replies: 6
Views: 1448

A very common mistake on DS questions, especially under the time pressure of the test, is missing information provided in the question. p is an odd integer here, so only one of your two examples is applicable. Thanks a lot!! BTW how to do it with method other than plug in? I could see that for stat...

by Reader

Wed Mar 18, 2009 7:18 pm
Forum: Data Sufficiency
Topic: Gmat Prep PT1 question
Replies: 6
Views: 1448

I am not sure, but I will try to answer it.


I think it's asking what's probability that the 3 item he picked, contains the two random chose item.

So it's (number of ways to pick 3 item that contain certain 2 items) /(10c3)

= 8 / (10!/(3!7!))

=8/120

=1/15


OA?

by Reader

Wed Mar 18, 2009 7:09 pm
Forum: Problem Solving
Topic: Probability - I don't get what the question asks!
Replies: 8
Views: 1697

Got good socre in prectice tests, but feeling uncertain...

On Monday I got 650 in my MGMAT CAT1, in that one I took some extra time in quantitative section. Today I did GMAT Prep test 1, and scored 740 and I even had 9 mins remaining for quantitative section when I was done. The scores just look too good to me, I am going to take the real thing on Saturday,...

by Reader

Wed Mar 18, 2009 5:41 pm
Forum: GMAT Strategy
Topic: Got good socre in prectice tests, but feeling uncertain...
Replies: 1
Views: 795