Search found 11 matches
Answering last question on GMAT?
I have a quick question about completing the last question in either section of the GMAT (Verbal or Quant). I read somewhere that if you are on the last question, that you will have a chance to answer it even if time runs out. Is this valid? Does this mean that you could theoretically take as long a...
- by stilite
Thu Oct 29, 2009 10:20 am- Forum: GMAT Strategy
- Topic: Answering last question on GMAT?
- Replies: 4
- Views: 1733
Post subject: Official Guide: Problem Solving - question #1
If anyone has their OG 12 book handy, I'd like to know if there is a shortcut to solving any problem related to #148 in the Problem Solving section (page 173). I get about half-way through the simplification/factoring of the initial formula, but then the "official answer" explains further ...
- by stilite
Sun Oct 18, 2009 9:51 am- Forum: Problem Solving
- Topic: Post subject: Official Guide: Problem Solving - question #1
- Replies: 1
- Views: 897
1/10^9 = 1*(1/10^9) correct? So if I factor 1/10^9 out ... I am left with 1 Take an eqn x+2xy If you factor out x you get x(1+2y) It's the same thing. Don't let the reciprocal fool you. Thank you,...I see now. What I didn't understand is that the factoring was at the first stage of the full (origin...
- by stilite
Tue Sep 08, 2009 9:43 am- Forum: Problem Solving
- Topic: Adding & Subtracting Factors
- Replies: 4
- Views: 3920
but I simply do not see where the "1" is coming from in the factoring.
How is the (1/10*9 x 1/10)
all of a sudden (1 - 1/10)
??
- by stilite
Tue Sep 08, 2009 8:57 am- Forum: Problem Solving
- Topic: Adding & Subtracting Factors
- Replies: 4
- Views: 3920
Adding & Subtracting Factors
I have come across this problem,... and after trying to analyze the author's answer, I can't figure out how he came up with one "break-down" of it. Before I post the answer, could someone else try it and let me know how they came up with the answer and perhaps the best way to approach addi...
- by stilite
Tue Sep 08, 2009 8:11 am- Forum: Problem Solving
- Topic: Adding & Subtracting Factors
- Replies: 4
- Views: 3920
Compound Interest
Hi all,... hope these help. The first is if you need to know what a final amount (balance) of an investment will be.
The other is if you know what the ending amount of the investment is now + where it began and what the compounded rate would be over a period of time.
- by stilite
Thu Aug 27, 2009 2:36 am- Forum: GMAT Math
- Topic: Compound Interest
- Replies: 0
- Views: 1320
Thanks for the update of the Flashcards, however, I have found something that has frustrated me for awhile and looks quite confusing on the cards... Regarding Mixtures & Dilutions: 1) In the lower-left card on page 76, you give the formula of how to solve these. 2) on the card directly to the ri...
- by stilite
Tue Aug 25, 2009 3:53 am- Forum: GMAT Strategy
- Topic: Download my free GMAT Flashcards!
- Replies: 406
- Views: 724414
I believe the is one "flashcard" directly from this site that mentions for DS questions that to solve for n unknown variables, you must have presented at least as many options to solve for that variable?? (perhaps I was missing the idea of this rule??) Other than than, wouldn't the easiest...
- by stilite
Sun Aug 23, 2009 9:23 pm- Forum: Data Sufficiency
- Topic: GMAT Prep DS problem
- Replies: 7
- Views: 1640
Thanks for the clarification,... this, again, is the premiere problem I am having (as I posted on another forum question).
I am always missing the point of finding out whether the possibilities are "sufficient" versus knowing the actual answer. I need to burn this in my brain.
- by stilite
Sun Aug 23, 2009 3:09 am- Forum: Data Sufficiency
- Topic: Toughie!
- Replies: 18
- Views: 10677
confusing solution
is it A? stmt 1 alone is sufficient. since it's asking only the unit digit of n, then just looking at the unit digits: 243^x -->3^x 463^y -->3^y so from the two lines: 3^x*3^y = 3^(x+y) if x+y=7, we know thd unit digit of 3^7, so unit digit of n can be found stmt 2, we know x, but don't know y, so ...
- by stilite
Sun Aug 23, 2009 2:08 am- Forum: Data Sufficiency
- Topic: Toughie!
- Replies: 18
- Views: 10677
DS confusion...
Hi guys, I've been starting this whole "GMAT" process for the past week or so, but I feel that this entire Data Sufficiency part is still throwing me for a loop. I think I am mainly confused about how to actually approach the questions and where to start. They give you the first equation. ...
- by stilite
Sun Aug 23, 2009 1:15 am- Forum: Data Sufficiency
- Topic: GMAT Prep DS problem
- Replies: 7
- Views: 1640