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# Recently implemented "shift-work equations" based

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Senior Manager
Joined: 18 Sep 2009
Posts: 356
Recently implemented "shift-work equations" based [#permalink]

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04 Nov 2009, 21:29
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(N/A)

Question Stats:

86% (01:00) correct 14% (01:01) wrong based on 11 sessions

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Recently implemented "shift-work equations" based on studies of the human sleep cycle have reduced
sickness, sleeping on the job, fatigue among shift workers, and have raised production efficiency in various
industries.
(a) fatigue among shift workers, and have raised
(B) fatigue among shift workers, and raised
(C) and fatigue among shift workers while raising
(D) lowered fatigue among shift workers, and raised
(E) and fatigue among shift workers was lowered while raising

[Reveal] Spoiler:
c

Whats wrong with option B

Manager
Joined: 03 Aug 2009
Posts: 84

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04 Nov 2009, 22:20
1
KUDOS
TomB wrote:
Recently implemented "shift-work equations" based on studies of the human sleep cycle have reduced
sickness, sleeping on the job, fatigue among shift workers, and have raised production efficiency in various
industries

(a) fatigue among shift workers, and have raised
(B) fatigue among shift workers, and raised
(C) and fatigue among shift workers while raising
(D) lowered fatigue among shift workers, and raised
(E) and fatigue among shift workers was lowered while raising

[Reveal] Spoiler:
c

Whats wrong with option B

B is wrong because of wrong parallelism "have reduced....,and raised". Since "shift-based equations" have reduced 1. sickness, 2. sleeping on the job 3. "fatigue among shift workers", the last "fatigue among shift workers" should precede "and".
Only option C is free from these errors.
_________________

Consider kudos for good post.

Intern
Joined: 16 Mar 2008
Posts: 20

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04 Nov 2009, 22:44
I believe its Option C as well since this option draws parallel for the 3 effects that are reduced and illustrates contrast effect by saying 'while raising..'.
Manager
Joined: 26 Oct 2009
Posts: 54

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05 Nov 2009, 06:29
right .. contrast is the key here.

thanks
SVP
Joined: 30 Apr 2008
Posts: 1874
Location: Oklahoma City
Schools: Hard Knocks

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11 Nov 2009, 05:32
A is incorrect because 'have raised' is incorrect. The list of things that have been reduced is in the past tense because the reduction has already taken place. However, the rise in production efficiency is still taking place, so we need "while raising" to communicate that is took place in the past and continues in the present.

TomB wrote:
Recently implemented "shift-work equations" based on studies of the human sleep cycle have reduced
sickness, sleeping on the job, fatigue among shift workers, and have raised production efficiency in various
industries.
(a) fatigue among shift workers, and have raised
(B) fatigue among shift workers, and raised
(C) and fatigue among shift workers while raising
(D) lowered fatigue among shift workers, and raised
(E) and fatigue among shift workers was lowered while raising

[Reveal] Spoiler:
c

Whats wrong with option B

_________________

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**I'm pretty sure I'm right, but then again, I'm just a guy with his head up his a\$\$.

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Manager
Joined: 10 Sep 2009
Posts: 112

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11 Nov 2009, 05:43
Thank you jallenmorris, it is now clear in my mind.
Manager
Joined: 28 Aug 2009
Posts: 186

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11 Nov 2009, 05:55
(a) fatigue among shift workers, and have raised
STructure of sentence is "X have reduced A,B,C,and have raised Y"
What is the comma after C doing,it is trying to add one more element
after the list of things which have been reduced..no its not .Rather it is
trying to add one more to the list of HAVEs and hence the proper structure is:
"X have reduced A,B and C,and have raised Y"
Re: shift-work equations   [#permalink] 11 Nov 2009, 05:55
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