It is currently 23 Sep 2017, 14:58

### 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 June
Open Detailed Calendar

# Recently implemented shift-work equations

Author Message
Senior Manager
Joined: 11 Feb 2007
Posts: 352

Kudos [?]: 173 [0], given: 0

### Show Tags

01 Apr 2007, 22:53
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

Recently implemented â€œshift-work equationsâ€

Kudos [?]: 173 [0], given: 0

Director
Joined: 13 Dec 2006
Posts: 506

Kudos [?]: 236 [0], given: 0

Location: Indonesia

### Show Tags

02 Apr 2007, 02:27
C

sentence says: recently shift-work equations..... have reduced sickness, sleeping on the job, fatigue....(parallel)

and it also says that production efficieny has been increased in various industries.... (cannot for a parallel construction)

so have raised or and raised cannot come, as its not parallel.
btw Cand E, later is redundant.

chose C

regards,

Amardeep

Kudos [?]: 236 [0], given: 0

VP
Joined: 06 Feb 2007
Posts: 1020

Kudos [?]: 197 [0], given: 0

### Show Tags

02 Apr 2007, 06:03
I think you are referring to the original sentence vs. choice C. Right?
At first, I thought that A was the right choice but when I came across C, I reread the original sentence and realized that C portrays the meaning of the sentence better. The meaning of the sentence is that all of the "bad" factors such as sleepiness and fatigue have decreased but AT THE SAME TIME the productivity went up. The only choice that expresses this meaning is "C". "A" merely lists all the factors.

Kudos [?]: 197 [0], given: 0

Senior Manager
Joined: 11 Feb 2007
Posts: 352

Kudos [?]: 173 [0], given: 0

### Show Tags

02 Apr 2007, 06:30
Ahh...thanks!

Yes, nervousgmat, I chose A.

I tried to make everything parallel. "and have raised" seemed to be parallel with "have reduced"

thought hard between A and C tho.
50% chance and I got it wrong again.

Kudos [?]: 173 [0], given: 0

Senior Manager
Joined: 24 Sep 2006
Posts: 272

Kudos [?]: 45 [0], given: 0

### Show Tags

02 Apr 2007, 07:21
You also need a contrast in this sentence because

reduced W,X,and Y while raising Z

choice C is the only choice that establishes this contrast correctly
_________________

AimHigher

Kudos [?]: 45 [0], given: 0

VP
Joined: 15 Jul 2004
Posts: 1441

Kudos [?]: 214 [0], given: 13

Schools: Wharton (R2 - submitted); HBS (R2 - submitted); IIMA (admitted for 1 year PGPX)

### Show Tags

02 Apr 2007, 08:24
Honestly, I feel a bit disadvantaged because I couldn't fathom this question was about BRINGING out the contrast. Grammatically, "have reduced" and "have raised" are perfectly parallel and alright.

I don't deny that C is a more elegant construction - once one has understood the guiding principle - The shift-work equations have reduced X, Y, and Z while raising productivity ..

Raising productivity is active Voice -- while establishes a sense of timing which essentially brings out the contrast -- during the time that fatigue etc were being reduced the productivity was being raised and so on...

I guess with a fair bit of practice alone can these intricacies be understood...

This question actually reminded of the "growth of rail roads led to the abolition of local times DETERMINED by (blah blah) and DIFFERING from city to city etc....

Basically involves establishing parallelism between Past Participle (have reduced) and present participle (raising) ....Not very intuitive but a very powerful concept.

Kudos [?]: 214 [0], given: 13

Current Student
Joined: 28 Dec 2004
Posts: 3354

Kudos [?]: 316 [0], given: 2

Location: New York City
Schools: Wharton'11 HBS'12

### Show Tags

02 Apr 2007, 13:08
I picked A too..but your explanation is good...thanks..

nervousgmat wrote:
I think you are referring to the original sentence vs. choice C. Right?
At first, I thought that A was the right choice but when I came across C, I reread the original sentence and realized that C portrays the meaning of the sentence better. The meaning of the sentence is that all of the "bad" factors such as sleepiness and fatigue have decreased but AT THE SAME TIME the productivity went up. The only choice that expresses this meaning is "C". "A" merely lists all the factors.

Kudos [?]: 316 [0], given: 2

Manager
Joined: 07 Feb 2007
Posts: 212

Kudos [?]: 15 [0], given: 0

Re: SC - shift-work equations [#permalink]

### Show Tags

02 Apr 2007, 15:36
C.

Parallel parts:
...have reduced noun, noun phrase, and noun phrase while raising

Kudos [?]: 15 [0], given: 0

Manager
Joined: 20 Nov 2006
Posts: 213

Kudos [?]: 17 [0], given: 0

### Show Tags

03 Apr 2007, 00:45
With all these explanations, i am a bit confused between A & C.

What is OA pls..?

Kudos [?]: 17 [0], given: 0

GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5039

Kudos [?]: 425 [0], given: 0

Location: Singapore

### Show Tags

03 Apr 2007, 05:48
A,B, and D all make it sound like the equation was the cause of the improved efficiency.
E 'was lowered' is redundant since 'reduced' has already been mentioned earlier in the sentence.

C is best.

Kudos [?]: 425 [0], given: 0

03 Apr 2007, 05:48
Similar topics Replies Last post
Similar
Topics:
The Behemoth Corp. has recently implemented policy aimed at 2 24 Jul 2008, 22:29
Recently implemented "shift-work equations" based 0 01 Jun 2017, 01:30
Recently implemented "shift-work equations" based 0 09 Jun 2016, 09:45
1 recently implemented "shift-work equations" based 4 15 Jul 2010, 10:49
1 Recently implemented "shift-work equations" based 6 11 Nov 2009, 05:55
Display posts from previous: Sort by