GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 10 Dec 2018, 03:48

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

## Events & Promotions

###### Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
• ### Free lesson on number properties

December 10, 2018

December 10, 2018

10:00 PM PST

11:00 PM PST

Practice the one most important Quant section - Integer properties, and rapidly improve your skills.
• ### Free GMAT Prep Hour

December 11, 2018

December 11, 2018

09:00 PM EST

10:00 PM EST

Strategies and techniques for approaching featured GMAT topics. December 11 at 9 PM EST.

# Uses of the irrational number e in fields other than pure

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:

### Hide Tags

Senior Manager
Joined: 21 Oct 2013
Posts: 419
Uses of the irrational number e in fields other than pure  [#permalink]

### Show Tags

07 Jan 2014, 13:09
2
9
00:00

Difficulty:

45% (medium)

Question Stats:

68% (02:02) correct 32% (02:10) wrong based on 318 sessions

### HideShow timer Statistics

Uses of the irrational number e in fields other than pure mathematics are seen in the calculation of continuous compounding in finance, terminal velocity in the field of physics, exponential decay in chemistry, and the constructing of the standard Western twelve-tone scale in music.

(A) Uses of the irrational number e in fields other than pure mathematics are seen in the calculation of continuous compounding in finance, terminal velocity in the field of physics, exponential decay in chemistry, and the constructing
(B) Uses of the irrational number e in fields other than pure mathematics are the calculation of continuous compounding in finance, terminal velocity in physics, exponential decay in chemistry, and in the constructing
(C) Uses of the irrational number e in fields other than pure mathematics are shown in the calculation of continuous compounding in finance, terminal velocity in physics, exponential decay in chemistry, and the constructing
(D) In fields other than pure mathematics, the irrational number e is used in the calculation of continuous compounding in finance, terminal velocity in the field of physics, and exponential decay in chemistry, and the construction
(E) In fields other than pure mathematics, the irrational number e is used in the calculation of continuous compounding in finance, terminal velocity in physics, and exponential decay in chemistry, and in the construction

Hi,
I want to know which parts are parallel in this sentence (just for official answer), please.
To me, this sentence consists of many parallel structures (e.g. used in the calculation … , and in the construction)
How about "in finance, in physics, in chemistry and in music"?
Magoosh GMAT Instructor
Joined: 28 Dec 2011
Posts: 4489
Re: Uses of the irrational number e in fields other than pure  [#permalink]

### Show Tags

07 Jan 2014, 13:35
5
1
goodyear2013 wrote:
Uses of the irrational number e in fields other than pure mathematics are seen in the calculation of continuous compounding in finance, terminal velocity in the field of physics, exponential decay in chemistry, and the constructing of the standard Western twelve-tone scale in music.

(A) Uses of the irrational number e in fields other than pure mathematics are seen in the calculation of continuous compounding in finance, terminal velocity in the field of physics, exponential decay in chemistry, and the constructing
(B) Uses of the irrational number e in fields other than pure mathematics are the calculation of continuous compounding in finance, terminal velocity in physics, exponential decay in chemistry, and in the constructing
(C) Uses of the irrational number e in fields other than pure mathematics are shown in the calculation of continuous compounding in finance, terminal velocity in physics, exponential decay in chemistry, and the constructing
(D) In fields other than pure mathematics, the irrational number e is used in the calculation of continuous compounding in finance, terminal velocity in the field of physics, and exponential decay in chemistry, and the construction
(E) In fields other than pure mathematics, the irrational number e is used in the calculation of continuous compounding in finance, terminal velocity in physics, and exponential decay in chemistry, and in the construction

Hi,
I want to know which parts are parallel in this sentence (just for official answer), please.
To me, this sentence consists of many parallel structures (e.g. used in the calculation … , and in the construction)
How about "in finance, in physics, in chemistry and in music"?

Dear goodyear2013,
I'm happy to respond.

The parallelism in the OA is very complicated, because it's two-layered --- there's parallelism within parallelism.

In fields other than pure mathematics, the irrational number e is used
// in the calculation of
//// continuous compounding in finance,
//// terminal velocity in physics,
and
//// exponential decay in chemistry

and
// in the construction of the standard Western twelve-tone scale in music.
The green part is the inner parallelism --- the three things that are "calculated." This parallel list is inside the preposition "of", following the word "calculation." The red part is the outer parallelism
.... used in the calculation of X and in the construction of the standard Western twelve-tone scale in music.
In that reduction, the X represents the inner parallelism.

Does this make sense?
Mike
_________________

Mike McGarry
Magoosh Test Prep

Education is not the filling of a pail, but the lighting of a fire. — William Butler Yeats (1865 – 1939)

##### General Discussion
Intern
Status: I'm trying to GMAT?
Joined: 12 Feb 2013
Posts: 23
Location: United States
Concentration: Finance, General Management
GMAT Date: 06-22-2013
WE: Engineering (Consulting)
Re: Uses of the irrational number e in fields other than pure  [#permalink]

### Show Tags

23 Jan 2014, 06:57
I was settling on E, but I found the ",and ____, and ____" to be redundant. Someone please refresh my memory. Thanks.
Magoosh GMAT Instructor
Joined: 28 Dec 2011
Posts: 4489
Re: Uses of the irrational number e in fields other than pure  [#permalink]

### Show Tags

23 Jan 2014, 10:26
2
I was settling on E, but I found the ",and ____, and ____" to be redundant. Someone please refresh my memory. Thanks.

I'm happy to respond. What's very tricky about this problem is the nested parallelism, that is, one parallel structure inside another.

It's perfectly true that with a single parallel structure, we absolutely would not repeat the word "and."
I want to do W and X and Y and Z.
Colloquially, one might say that for dramatic effect, but it would never be correct in the formalism demanded of the GMAT. It's unnecessarily wordy & redundant. That's perfectly clear.

It becomes very tricky when we nest parallelism, that is to say, when we put one parallel structure inside another. Let's start with this sentence:
He likes to read books and to take long walks at twilight.
That has simple parallelism --- the two infinitives in parallel, the two things this person likes to do. So far so good. Now, consider this sentence:
He likes to read mystery, Gothic novels, and books about the paranormal..
Again, perfectly fine simple parallelism --- here, the three things the person likes to read. Now, consider what happens when we combine all this information:
He likes to read mystery, Gothic novels, and books about the paranormal, and to take long walks at twilight..
That sentence is 100% grammatically correct. The subject matter is a bit to storybook for the GMAT, but the grammatical structure is typical of what could appear on the GMAT. Here, the parallelism of the different book types is the "inner parallelism", and the first "and" is for this list; the parallelism of the two infinitive phrases, what he likes to do, is the outer parallelism, and the second "and" is for that list. After the simple subject & verb, "he likes", we have two infinitive phrases in parallel, and inside the first of those infinitive phrases is a second parallel structure, the kinds of books. The two "and's" in this sentence have very different jobs are very different from doubling up "and's" in the same list.

One of the trickiest things about the GMAT SC is the way that almost any grammatical structure can be nested inside almost any other structure. GMAT SC sentences can be like "Russian dolls", with shorter structures nested inside larger structures, and the hardest thing to do with each conjunction & adverb & etc. it to figure out to which level of the sentence it applies.

Does all this make sense?
Mike
_________________

Mike McGarry
Magoosh Test Prep

Education is not the filling of a pail, but the lighting of a fire. — William Butler Yeats (1865 – 1939)

Manager
Joined: 16 Jan 2013
Posts: 145
Re: Uses of the irrational number e in fields other than pure  [#permalink]

### Show Tags

23 Jan 2014, 12:20
Dear Mike, I really liked the word 'nested'. Gives a whole new dimension to solving an SC Q. Thanks for the tip. Hope others pick the intricacies too.
_________________

What are modifiers ??

Retired Moderator
Joined: 18 Sep 2014
Posts: 1121
Location: India
Uses of the irrational number e in fields other than pure  [#permalink]

### Show Tags

05 Mar 2016, 09:26
1
Uses of the irrational number e in fields other than pure mathematics are seen in the calculation of
• continuous compounding in finance,
• terminal velocity in the field of physics,
• exponential decay in chemistry, and
• the constructing of the standard Western twelve-tone scale in music.

(A) the constructing is not parallel to remaining nouns in the list.

(B) Uses of the irrational number e in fields other than pure mathematics are the calculation of continuous compounding in finance, terminal velocity in physics, exponential decay in chemistry, and in the constructing
same error as in A.
Also uses are not calculation of all the items in list. They are the applications in which e is used.

(C) Uses of the irrational number e in fields other than pure mathematics are shown in the calculation of continuous compounding in finance, terminal velocity in physics, exponential decay in chemistry, and the constructing
same error of parallelism repeats here.

(D) In fields other than pure mathematics, the irrational number e is used in the calculation of continuous compounding in finance, terminal velocity in the field of physics, and exponential decay in chemistry, and the construction
in the field of adds to the redundancy here.
and twice in the list of items spoils parallelism.

(E) In fields other than pure mathematics, the irrational number e is used
in the calculation of
continuous compounding in finance,
terminal velocity in physics, and
exponential decay in chemistry,

&
in the construction
of the standard Western twelve-tone scale in music.

This choice perfectly follows the parallelism.
Non-Human User
Joined: 01 Oct 2013
Posts: 3491
Re: Uses of the irrational number e in fields other than pure  [#permalink]

### Show Tags

26 Jun 2018, 05:03
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
Re: Uses of the irrational number e in fields other than pure &nbs [#permalink] 26 Jun 2018, 05:03
Display posts from previous: Sort by

# Uses of the irrational number e in fields other than pure

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.