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Since 1975 ...

by AIM GMAT » Thu Feb 03, 2011 10:30 am
Since 1975 the proportion of white males in executive positions at Fortune 500 companies have consistently declined, while the percentages of women and ethnic minorities who hold such positions have grown.


A] have consistently declined, while the percentages of women and ethnic minorities who hold such positions have grown
B] have consistently declined, while women and ethnic minorities holding such positions have increased in percentage
C] declined consistently, while there was an increase in the percentage of women and ethnic minorities holding such positions
D] has consistently declined, while the percentages of women and ethnic minorities holding such positions have grown
E] has consistently declined, while those of women and ethnic minorities who hold such positions grew


OA later
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by maihuna » Thu Feb 03, 2011 10:37 am
IMO: The proportiona has declined while the percentages have grown.
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by eyelikecheese » Thu Feb 03, 2011 10:46 am
D. Obviously A,B,C are out.

E is out because grew doesn't agree with the beginning "Since"
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by AIM GMAT » Thu Feb 03, 2011 10:47 am
maihuna wrote:IMO: The proportiona has declined while the percentages have grown.
Isnt percentages awkward .... ?
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by maihuna » Thu Feb 03, 2011 10:57 am
AIM GMAT wrote:
maihuna wrote:IMO: The proportiona has declined while the percentages have grown.
Isnt percentages awkward .... ?
Actually I am sure it should be : either of D E, due to tense/agreement of proportion, E have parallelism issue so I am betting on D. One more thing when I post, I just try to emulate test timing, be in verbal or quant irrespective of whether I am wrong or right.
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by prachich1987 » Thu Feb 03, 2011 10:58 am
Since 1975 the proportion of white males in executive positions at Fortune 500 companies have consistently declined, while the percentages of women and ethnic minorities who hold such positions have grown.


A] have consistently declined, while the percentages of women and ethnic minorities who hold such positions have grown
S-V agreement error.
In context of this sentence, we need to use singular verb HAS

B] have consistently declined, while women and ethnic minorities holding such positions have increased in percentage
S-V agreement error.
In context of this sentence, we need to use singular verb HAS

C] declined consistently, while there was an increase in the percentage of women and ethnic minorities holding such positions
The sentence starts with SINCE.Hence we can't use past tense here.

D] has consistently declined, while the percentages of women and ethnic minorities holding such positions have grown
Correct

E] has consistently declined, while those of women and ethnic minorities who hold such positions grew
The sentence starts with SINCE.Hence we can't use past tense here.
Further the parallelism is violated.
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by AIM GMAT » Thu Feb 03, 2011 11:01 am
Thanks maihuna and Prachi .

Maihuna highligted the parallelism error in E and Prachi told the usage of since , which i almost forgot .

I just eliminated D coz it compared % with proportion and coz of word percentages .

Oa is D.
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by prachich1987 » Thu Feb 03, 2011 11:01 am
AIM GMAT wrote:
maihuna wrote:IMO: The proportiona has declined while the percentages have grown.
Isnt percentages awkward .... ?
IMO usage of Percentages is right here
Percentage of women & percentage of ethnic minorities.
Hence percentages
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by AIM GMAT » Thu Feb 03, 2011 11:03 am
Wow !!! Thanks , i guess i am rusting , i should book the gMAT date soon . Bedazzled :) .
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by GMATGuruNY » Thu Feb 03, 2011 3:05 pm
AIM GMAT wrote:Since 1975 the proportion of white males in executive positions at Fortune 500 companies have consistently declined, while the percentages of women and ethnic minorities who hold such positions have grown.


A] have consistently declined, while the percentages of women and ethnic minorities who hold such positions have grown
B] have consistently declined, while women and ethnic minorities holding such positions have increased in percentage
C] declined consistently, while there was an increase in the percentage of women and ethnic minorities holding such positions
D] has consistently declined, while the percentages of women and ethnic minorities holding such positions have grown
E] has consistently declined, while those of women and ethnic minorities who hold such positions grew


OA later
An important distinction:

A proportion can be singular or plural:

A large proportion of the scoops are chocolate. (Here, a proportion is plural because it refers to the countable noun scoops.)

A large proportion of the ice cream is chocolate. (Here, a proportion is singular because it refers to the non-countable noun ice cream.)

The proportion is always singular, regardless of what it refers to:

The proportion of white males in executive positions has declined.
The proportion of the male work force in executive positions has declined.

In A and B above, the proportion (singular) doesn't agree with have declined (plural). Eliminate A and B.

In C, declined is incorrect because the word since requires the present perfect tense: since 1975, the proportion...has declined. Eliminate C.

In E, it is unclear what the plural pronoun those refers to. Eliminate E.

The correct answer is D.
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by AIM GMAT » Thu Feb 03, 2011 11:07 pm
Thanks Mitch for the detailed explanations , it made the hazy part crystal clear :) .
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