According to a study published by Dr. Myrna Weissman, only : GMAT Sentence Correction (SC)
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Director
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22 Jan 2005, 13:09
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According to a study published by Dr. Myrna Weissman, only one percent of Americans born before 1905 had suffered major depression by the age of seventy-five; of those born since 1955, six percent had become depressed by age twenty-four.
(A) only one percent of Americans born before 1905 had suffered major depression by the age of seventy-five; of those born since 1955, six percent had become depressed by age twenty-four
(B) only one percent of Americans born before 1905 suffer major depression by the age of seventy-five; if they are born since 1955, six percent become depressed by age twenty-four
(C) of Americans born before 1905, only one percent of them have suffered major depression by age seventy-five, but six percent of those born since 1955 do by the age of twenty-four
(D) major depression is suffered by the age of seventy-five by only one percent of Americans born before 1905, and by age twenty-four by the six percent born since 1955
(E) Americans born before 1905 suffer major depression by the age of seventy-five only one percent of the time, but six percent of those born since 1955 did so by age twenty-four
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22 Jan 2005, 13:14
C it is... i think the study is about americans, and thats the subject of this sentence.
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22 Jan 2005, 14:39
Seems like a tough one. Let me try ..

(A) only one percent of Americans born before 1905 had suffered major depression by the age of seventy-five; of those born since 1955, six percent had become depressed by age twenty-four

OK. This does not contrast the results well though! Let us see if anything else is better.

(B) only one percent of Americans born before 1905 suffer major depression by the age of seventy-five; if they are born since 1955, six percent become depressed by age twenty-four

ackward

(C) of Americans born before 1905, only one percent of them have suffered major depression by age seventy-five, but six percent of those born since 1955 do by the age of twenty-four

have suffered is wrong, had suffered to indicate that action has happened. Eliminated

(D) major depression is suffered by the age of seventy-five by only one percent of Americans born before 1905, and by age twenty-four by the six percent born since 1955

Passive, ackward

(E) Americans born before 1905 suffer major depression by the age of seventy-five only one percent of the time, but six percent of those born since 1955 did so by age twenty-four
Changes meanining

A) it is
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22 Jan 2005, 15:21
OA is (A)

I can get to (A) by POE since it is the best one but I have a question. Why (A) uses "past perfect" twice.

and

What do those actions precede?
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22 Jan 2005, 23:02
(A) only one percent of Americans born before 1905 had suffered major depression by the age of seventy-five; of those born since 1955, six percent had become depressed by age twenty-four
(B) only one percent of Americans born before 1905 suffer major depression by the age of seventy-five; if they are born since 1955, six percent become depressed by age twenty-four
"if" is wrong
(C) of Americans born before 1905, only one percent of them have suffered major depression by age seventy-five, but six percent of those born since 1955 do by the age of twenty-four
This repetition is definitely wrong
(D) major depression is suffered by the age of seventy-five by only one percent of Americans born before 1905, and by age twenty-four by the six percent born since 1955
Passive
(E) Americans born before 1905 suffer major depression by the age of seventy-five only one percent of the time, but six percent of those born since 1955 did so by age twenty-four
Changed meaning

So (A). Past perfect could be because the article's already published. His findings was about things happened before his conclusions were made?
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23 Jan 2005, 12:05
HongHu wrote:
So (A). Past perfect could be because the article's already published. His findings was about things happened before his conclusions were made?

I don't know if that sounds convincing. The sentence would be better with past tense only.
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