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GMAT Club Legend
Joined: 07 Jul 2004
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03 Sep 2005, 02:00
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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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Director
Joined: 15 Aug 2005
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03 Sep 2005, 04:06
Of the lot A seems the best, though A in itself doesnt sound alright!
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Director
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03 Sep 2005, 18:53
B is wrong as there its not parallel in its tense usage - moreover, those who are born before 1905 become 75 by 1980, so thats it the past - but the tense is a simple present.

C is wrong coz - but six percent of those born since 1955 do by the age - do by the age is not clear at all. Also, - of the americans born....1% of them - redundant usage of OF ....

SO A it is IMO.
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Joined: 03 Nov 2004
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04 Sep 2005, 10:24
hard to believe but A is best here. Using POE we can do away with the rest of the answer choices - B and C not parallel, D, E wrong tense.

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GMAT Club Legend
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05 Sep 2005, 08:28
OA is A.

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05 Sep 2005, 17:56

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06 Sep 2005, 00:21
Yeah, A is good. "had suffered" in A makes is best for those born before 1905.
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06 Sep 2005, 00:21
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