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GMAT Integrated Reasoning :: No Preparation for IR Yet -- 5 days to exam

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Author: jaiyeolab
Subject: No Preparation for IR Yet -- 5 days to exam
Posted: Wed Sep 13, 2017 2:09 pm (GMT -8)

Hi All,

Thanks for reading my post.

I am taking the exam in a few days and I haven't had the time to prepare for IR and AWA. I have been working on weaknesses in verbal and quant, and I have dedicated no time to IR and AWA.

I am wondering if any one has any resources that I can utilize to review IR and AWA over the course of 4-5 hours?

Thanks in advance


Data Sufficiency :: X grams

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Author: lheiannie07
Subject: X grams
Posted: Wed Sep 13, 2017 2:13 pm (GMT -8)

X grams of water were added to 80 grams of a strong solution of acid. If as a result, the concentration of acid in the solution became 1/Y times of the initial concentration, what was the concentration of acid in the original solution?


(1) X = 80

(2) Y = 2

What is the best way to determine on which of the 2 statements are the correct answer?

OA E

Problem Solving :: A certain financial institution

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Author: lheiannie07
Subject: A certain financial institution
Posted: Wed Sep 13, 2017 2:25 pm (GMT -8)

A certain financial institution reported that its assets totaled $2,377,366.30 on a certain day. Of this amount, $31,724.54 was held in cash. Approximately what percent of the reported assets was held in cash on that day?

A. 0.00013

B. 0.0013

C. 0.013

D. 0.13

E. 1.3

How will i start solving it? I am confused about the formulas to use. Need experts advice.

OAE

Critical Reasoning :: In Gandania

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Author: lheiannie07
Subject: In Gandania
Posted: Wed Sep 13, 2017 2:31 pm (GMT -8)

In Gandania, where the government has a monopoly on tobacco sales, the incidence of smoking-related health problems has risen steadily for the last twenty years. The health secretary recently proposed a series of laws aimed at curtailing tobacco use in Gandania. Profits from tobacco sales, however, account for ten percent of Gandania's annual revenues. Therefore, Gandania cannot afford to institute the proposed laws.

Which of the following, if true, most seriously weakens the argument?

(A) All health care in Gandania is government-funded.

(B) Implementing the proposed laws is not likely to cause a significant increase in the amount of tobacco Gandania exports.

(C) The percentage of revenue Gandania receives from tobacco sales has remained steady in recent years.

(D) Profits from tobacco sales far surpass any other single source of revenue for the Gandanian government.

(E) No government official in Gandania has ever previously proposed laws aimed at curtailing tobacco use.

What is wrong with the other options? Can experts explain? Thanks

OA A

Critical Reasoning :: In Gandania

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Author: lheiannie07
Subject: In Gandania
Posted: Wed Sep 13, 2017 2:35 pm (GMT -8)

In Gandania, where the government has a monopoly on tobacco sales, the incidence of smoking-related health problems has risen steadily for the last twenty years. The health secretary recently proposed a series of laws aimed at curtailing tobacco use in Gandania. Profits from tobacco sales, however, account for ten percent of Gandania's annual revenues. Therefore, Gandania cannot afford to institute the proposed laws.

Which of the following, if true, most seriously weakens the argument?

(A) All health care in Gandania is government-funded.

(B) Implementing the proposed laws is not likely to cause a significant increase in the amount of tobacco Gandania exports.

(C) The percentage of revenue Gandania receives from tobacco sales has remained steady in recent years.

(D) Profits from tobacco sales far surpass any other single source of revenue for the Gandanian government.

(E) No government official in Gandania has ever previously proposed laws aimed at curtailing tobacco use.

What is wrong with the other options? Can experts explain? Thanks

OA A

Sentence Correction :: Pablo Picassio's genius

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Author: lheiannie07
Subject: Pablo Picassio's genius
Posted: Wed Sep 13, 2017 2:41 pm (GMT -8)

Pablo Picassio's genius is only fully revealed when one considers the various facets of his work as they developed through many artistic phases, beginning with his Red period, continuing through his blue period, and finishing with his period of Cubism.

A. period, continuing through his blue period, and finishing with his period of Cubism
B. period, continuing through his blue period, and finishing with his Cubist period
C. period, continuing through his blue period, and his Cubist period
D. period phase, his blue period phase, and his phase of cubism.
E. period, his blue period, and his period of cubism.

Why is Option B the correct answer? Need help please

OA B

Problem Solving :: RE: A certain financial institution

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Author: Brent@GMATPrepNow
Posted: Wed Sep 13, 2017 3:06 pm (GMT -8)

lheiannie07 wrote:
A certain financial institution reported that its assets totaled $2,377,366.30 on a certain day. Of this amount, $31,724.54 was held in cash. Approximately what percent of the reported assets was held in cash on that day?

A. 0.00013
B. 0.0013
C. 0.013
D. 0.13
E. 1.3
Since the answer choices are so spread apart, we can use some approximations.
Let's round $2,377,366.30 UP to $2,400,000

Now let's test out some percents.
10% of $2,400,000 is $240,000
1% of $2,400,000 is $24,000

Since $31,724.54 is BETWEEN $24,000 and $240,000 , we can conclude that the desired percent must be BETWEEN 1% and 10%

Only answer choice E is between 1% and 10%

Answer: E

Cheers,
Brent
_________________
Brent Hanneson – Founder of GMATPrepNow.com
Use our video course along withBeat The GMAT's free 60-Day Study Guide

Check out the online reviews of our course

GMAT Strategy :: GMAT Prep Now Account Giveaway/Contest #23

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Author: Brent@GMATPrepNow
Subject: GMAT Prep Now Account Giveaway/Contest #23
Posted: Wed Sep 13, 2017 3:25 pm (GMT -8)

Enter to win a 6-month GMAT video course from GMATPrepNow.com.

The rules are very simple: Submit any positive integer (1, 2, 3, etc.) as your entry, and the contestant who submits the smallest unique number wins a 6-month account at www.GMATPrepNow.com

The key word here is UNIQUE. For example, if two or more people submit 1 as their entry, then those entries cannot win, because they’re not unique entries. Likewise, if two or more people submit 3 as their entry, then those entries cannot win because they are not unique entries.

So, if 12 people participated in the contest, and the entries were {1, 1, 1, 3, 3, 4, 5, 5, 5, 6, 7, 7}, then the winner would be the person who submitted 4, since 4 was the smallest UNIQUE number submitted.

Does that make sense?

If you’d like to participate in this week’s contest, EITHER email your entry (of one positive integer) contests@gmatprepnow.com with the subject line “Smallest Number Contest” OR private message your entry to me via Reddit (/u/Brent_GMATPrepNow).

Deadline: 7am (Pacific Time) on September 19th, 2017.

The winner will be announced shortly after the deadline passes.

To help you strategize, here are the results from two previous contests:
- http://www.beatthegmat.com/gmat-prep-now-account-giveaway-contest-20-t295384.html
- http://www.beatthegmat.com/gmat-prep-now-account-giveaway-contest-19-t295331.html

Cheers,
Brent
_________________
Brent Hanneson – Founder of GMATPrepNow.com
Use our video course along withBeat The GMAT's free 60-Day Study Guide

Check out the online reviews of our course


GMAT Strategy :: RE: GMAT 640-750 practice strategy

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Author: Brent@GMATPrepNow
Posted: Wed Sep 13, 2017 3:33 pm (GMT -8)

Smarth wrote:
Hi
I've been giving princeton review mock tests and have scored 640, 650 and 640 in the last 3 tests that I attempted, with a QA 47-48 and VA 32. I want to improve both my sections and overall score to get a 720-730+ score. What additional material and strategy can help me score better, considering I plan to take the GMAT in the next 25-30 days?

Material I've used till now: GMAT OG 2017, Princeton Review Portal Drills and Mock tests.
To achieve a solid GMAT score, you must:

    1) Learn the concepts and techniques tested on the GMAT (e.g., circle properties, divisibility rules, past perfect tense, equation-solving, etc.)
    2) Master GMAT-specific strategies (e.g., testing the answer choices, rephrasing the target question, identifying subjects and verbs in sentences, etc.)
    3) Understand the many different ways the test-makers can test your knowledge of each concept
    4) Hone your test-taking skills (e.g., endurance, time management, guessing strategies, etc.)


Many students make the mistake of limiting their preparation to item #1 (and perhaps item #2). So, once they fully grasp a concept and successfully answer 1 or 2 related questions, they move on to the next topic. The problem with this strategy is that the test-makers can take any concept, no matter how simple, and create dozens of wildly different questions , each requiring a different approach. So, to achieve a great score, you must answer a lot of practice questions specifically-related to each concept tested on the GMAT.

Given all of this, I recommend a systematic approach, in which you take the time to thoroughly address each topic/concept. So, for each topic/concept, you should:
    - Learn the underlying concepts (rules, attributes, notation, etc.)
    - Learn GMAT-specific strategies related to that topic
    - Practice dozens of questions all related to that one topic.
    - Don't stop working on that topic until you have mastered it

Then, and only then, move on to the next topic.

To help you fully explore the ins and outs of each topic, you can use Beat the GMAT’s question-tagging tool (http://www.beatthegmat.com/forums/tags/gmat-math). This will give you access to tons of topic-specific practice questions.

Finally, your study plan should include several full-length practice tests. Keep in mind that the GMAT is a test of your math and verbal skills AND it's a test of your test-taking skills. So, 700-level math/verbal skills, combined with 600-level test-taking skills, will likely result in a score that's closer to 600 than to 700.

I hope that helps.

Cheers,
Brent
_________________
Brent Hanneson – Founder of GMATPrepNow.com
Use our video course along withBeat The GMAT's free 60-Day Study Guide

Check out the online reviews of our course

Sentence Correction :: RE: Supernova

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Author: Mo2men
Posted: Wed Sep 13, 2017 5:05 pm (GMT -8)

GMATGuruNY wrote:
vishalwin wrote:
1) In C, one and it are redundant, each referring to the explosion. --> How are they redundant?
C: one they believe that it is of a type
Since both one and it seem to refer to supernova explosion, we get:
a supernova explosion they believe that the supernova explosion is of a type.
The repetition of supernova explosion is both redundant and nonsensical.

Quote:
2) In both options B & C "THAT" & "IT" refers to Explosion? am I right?
As noted above, C conveys the following meaning:
a supernova explosion they believe that the supernova explosion is of a type.
Here, that does not serve to refer to an explosion.
Rather, the entire that-clause in red serves as the DIRECT OBJECT of believe.
WHAT do astronomers believe?
They believe THAT THE SUPERNOVA EXPLOSION IS OF A TYPE.

In my post directly above, I explain the structure in B.
Dear Mitch,

1- GMAC in its model answer says that "The pronoun that in A and B should be deleted, since the pronoun one is sufficient to introduce the modifier and the sentence is more fluid without that." is it always with 'one'? if yes, is there any other words in line with 'one??

2-Is the verb 'believe that' is correct? Have you seen it compared to 'believe...to be...'?

Thanks

GMAT Strategy :: RE: No improvement in quantitative

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Author: Rich.C@EMPOWERgmat.com
Posted: Wed Sep 13, 2017 6:05 pm (GMT -8)

Hi yasirnasir,

About 2 months ago, you stated that you had taken a practice CAT and scored 550. From this recent post, it's not clear whether you've taken 3 CATs or just that 1 CAT. If you've taken any additional practice CATs since then, then how did you score on each? If you have not taken any additional CATs, then I highly recommend that you take one soon (perhaps this weekend) - and report back when you have your score results.

GMAT assassins aren't born, they're made,
Rich
_________________
Contact Rich at Rich.C@empowergmat.com

GMAT Math :: RE: Code in alphabetical order

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Author: Rich.C@EMPOWERgmat.com
Posted: Wed Sep 13, 2017 6:13 pm (GMT -8)

Hi imawolf,

What is the source of this question? I ask because it does not include many of the 'details' that an Official question would likely include. For example, it refers to 'three digit' codes when it's clearly meant to infer 'three-letter' codes. We're meant to infer that we're dealing with the 26-letter English alphabet, but the prompt never explicitly states that and we're also meant to infer that duplicate letters are NOT allowed (which the prompt also does not state).

Assuming all of those details though, then Brent's solution is spot-on. That having been said, if this lack of attention-to-detail is typical in the questions that came from this source, then you might want to work with a different resource that provides more reputable study materials.

GMAT assassins aren't born, they're made,
Rich
_________________
Contact Rich at Rich.C@empowergmat.com

GMAT Math :: RE: Code in alphabetical order

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Author: imawolf
Posted: Wed Sep 13, 2017 6:24 pm (GMT -8)

Very clear! Thanks Brent!

Problem Solving :: RE: The function f is defined for each positive...

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Author: Rich.C@EMPOWERgmat.com
Posted: Wed Sep 13, 2017 6:35 pm (GMT -8)

Hi Vincen,

While this prompt is 'complex-looking', it's based on some relatively simple concepts (once you unravel the information that you've been given).

To start, we're told that each DIGIT of a positive 3-digit number is defined by...
f(N) = (2^X)(3^Y)(5^Z) where X, Y and Z are the hundreds, tens and units digits of N.

For example, IF... N = 410, then f(410) = (2^4)(3^1)(5^0) = (16)(3)(1) = 48

We're told that M and V are 3-digit numbers such that f(M) = 9(f(V)). We're asked for the value of M-V.

Given how the function multiplies 'powers of primes', for one 3-digit number to be 9 TIMES another, the larger number MUST have "two more 3s" than the smaller number. For that to occur, the tens digit of the larger number must be 2 greater than the tens digit of the smaller number. The other two digits (hundreds and units) must be the SAME.

For example: 240 and 220
f(240) = (2^2)(3^4)(5^0) = (4)(81)(1) = 324
f(220) = (2^2)(3^2)(5^0) = (4)(9)(1) = 36
324 = 9 times 36

Thus, the difference between the M and V comes down to the tens digits - and while there are several potential options here - they ALL differ by 20.

Final Answer: D

GMAT assassins aren't born, they're made,
Rich
_________________
Contact Rich at Rich.C@empowergmat.com

Problem Solving :: RE: OG2015 PS In a certain city

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Author: Rich.C@EMPOWERgmat.com
Posted: Wed Sep 13, 2017 6:39 pm (GMT -8)

Hi lionsshare,

We're told that 60 percent of the registered voters are Democrats and the rest are Republicans and that 75 percent of the registered voters who are Democrats and 20 percent of the registered voters who are Republicans are expected to vote for Candidate A. We're asked for the percent of the registered voters who are expected to vote for Candidate A. This question can be solved by TESTing VALUES.

IF.... there are 100 TOTAL voters, then...
60% = 60 are registered Democrats
100 - 60 = 40 are registered Republicans

75% of the 60 Democrats = 45
20% of the 40 Republicans = 8
45 + 8 = 53 of the 100 voters will vote for Candidate A.

Final Answer: B

GMAT assassins aren't born, they're made,
Rich
_________________
Contact Rich at Rich.C@empowergmat.com


Problem Solving :: RE: A television manufacturer produces 600. . .

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Author: Rich.C@EMPOWERgmat.com
Posted: Wed Sep 13, 2017 6:46 pm (GMT -8)

Hi Vincen,

While this question is a bit 'wordy', there's a great built-in logic 'shortcut' that you can use to minimize the amount of work that you need to do to get to the correct answer. To start, we're given a couple of facts to work with:
1) There are 600 units produced and sold
2) Each unit COST $90 to make

We're asked for the price at which the TOTAL PROFIT from the sale of these units = $42,000.

Since there are 600 units, then each unit has to bring in $42,000/600 = $70 in profit. The COST of each unit is $90, so to hit that total profit, we just need to increase that $90 by $70 on each unit.

$90 + $70 = $160

Final Answer: D

GMAT assassins aren't born, they're made,
Rich
_________________
Contact Rich at Rich.C@empowergmat.com

I just Beat The GMAT! :: RE: Need Honest Opinions - 670 on the GMAT !!!

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Author: Rich.C@EMPOWERgmat.com
Posted: Wed Sep 13, 2017 6:52 pm (GMT -8)

Hi TheMystic,

First off, a 670/Q49 is a strong score (it's wells above the 80th percentile overall), so it could very well be enough to get you into your first-choice School. As such, a retest might not be necessary. Depending on the Schools that you plan to apply to, you would likely find it beneficial to speak with an Admissions Expert about your overall profile. There's a Forum full of them here:

http://www.beatthegmat.com/ask-an-mba-admissions-consultant-f40.html

1) When are you planning to apply to Business School?
2) What Schools are you planning to apply to?

GMAT assassins aren't born, they're made,
Rich
_________________
Contact Rich at Rich.C@empowergmat.com

Problem Solving :: OG2015 PS A committee is composed

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Author: lionsshare
Subject: OG2015 PS A committee is composed
Posted: Wed Sep 13, 2017 7:42 pm (GMT -8)

A committee is composed of w women and m men. If 3 women and 2 men are added to the committee, and if one person is selected at random from the enlarged committee, then the probability that a woman is selected can be represented by

(A) w/m
(B) w/(w+m)
(C) (w+3)/(m+2)
(D) (w+3)/(w+m+3)
(E) (w+3)/(w+m+5)

OA: E

Hello, Experts! Please explain how to solve the problem. Thanks a lot.

Problem Solving :: OG2015 PS The figure above shows

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Author: lionsshare
Subject: OG2015 PS The figure above shows
Posted: Wed Sep 13, 2017 8:10 pm (GMT -8)



The figure above shows a circular flower bed, with its center at O, surrounded by a circular path that is 3 feet wide. What is the area of the path, in square feet?

(A) 25π
(B) 38π
(C) 55π
(D) 57π
(E) 64π

OA: D

Can anyone, please share the solution to this problem.

Sentence Correction :: RE: Noting that the Federal Reserve

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Author: pnwong
Posted: Wed Sep 13, 2017 8:14 pm (GMT -8)

Hi Mitch,
I actually have another question about "Rising interest rates". When I approached this question,
I saw Choice A/B possibly go either way that the sentence has a subject of verbing or that the whole thing, "rising interest rates" is the subject. Is that correct? Thank you in advance!

GMATGuruNY wrote:
Crystal W wrote:
Noting that the Federal Reserve had raised a key short-term interest rate against last month, analysts said that they expected orders for durable goods to decline soon because rising interest rates makes it more expensive to buy them on credit.

(A) rising interest rates makes it more expensive to buy them on credit
(B) rising interest rates make buying on credit more expensive
(C) a rise in interest rates make it more expensive to buy on credit
(D) a rise in interest rates make buying on credit more expensive
(E) a rise in interest rates makes it more expensive for them to be bought on credit
A: rates makes
Here, rates (plural) does not agree with makes (singular).
Eliminate A.

C and D: a rise...make
Here, a rise (singular) does not agree with make (plural).
Eliminate C.

E: analysts said that THEY expected orders for durable goods to decline soon because a rise in interest rates makes it more expensive for THEM to be bought on credit
Generally, forms of the same pronoun should have the same referent.
Here, they serves to refer to analysts.
As a result, a reader might construe that them also serves to refer to analysts.
Since the intended referent for them is durable goods -- and B is free of errors and avoids this issue -- eliminate E and choose B.

The correct answer is B.

Quote:
In choice E, it instead to be bought on credit and to be bought on credit is the object.
E: a rise in interest rates makes it more expensive for them to be bought on credit
Here, it is an expletive serving to stand in for the portion in blue.
If we interpret that them serves to refer to durable goods, we get:
A rise in interest rates makes to be bought on credit more expensive for durable goods.
Here, the usage of for durable goods implies that durable goods WANT to be bought on credit but that the process has become more expensive for them.
This meaning is nonsensical.

Quote:
I do not think the referent of them has problem because orders and durable goods are the same thing radically.
This line of reasoning is invalid.
An order is a request for a product.
E: them to be bought
Here, if them serves to refer to orders, the implication is that REQUESTS are TO BE BOUGHT.
This meaning is nonsensical.

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