The first detailed study of magpie attacks in Australia : GMAT Sentence Correction (SC)
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# The first detailed study of magpie attacks in Australia

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The first detailed study of magpie attacks in Australia [#permalink]

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27 Sep 2009, 21:19
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The first detailed study of magpie attacks in Australia indicates that by the time they had reached adulthood, 98 percent of men and 75 percent of women born in country have been attacked by the birds.

a) by the time they had reached adulthood, 98 percent of men and 75 percent of women born in country have been attacked by the birds
b) by the time they reach adulthood, 98 percent of men and 75 percent of women, who were born in the country, had been attacked by birds.
c) by the time they reach adulthood, 98 percent of men and 75 percent of the women born in the country had been attacked by the birds.
d) 98 percent of the men and 75 percent of the women that were born in the country were attacked by the birds by the time they reach adulthood.
e) 98 percent of men and 75 percent of women who were born in the country, by the time they reached adulthood had been attacked by birds

OA after some discussion.
If you have any questions
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Re: GMAT Prep - Magpie - Tough question [#permalink]

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27 Sep 2009, 22:20
All the first 4 options incorrectly use "they". The only one that uses "they" correctly is E.
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Re: GMAT Prep - Magpie - Tough question [#permalink]

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17 Nov 2009, 08:16
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a) by the time they had reached adulthood, 98 percent of men and 75 percent of women born in country have been attacked by the birds
BORN IN COUNTRY should be BORN IN THE COUNTRY
b) by the time they reach adulthood, 98 percent of men and 75 percent of women, who were born in the country, had been attacked by birds.
ATTACKED BY BIRDS means birds in general.should be BY THE BIRDS
c) by the time they reach adulthood, 98 percent of men and 75 percent of the women born in the country had been attacked by the birds.
CORRECT
d) 98 percent of the men and 75 percent of the women that were born in the country were attacked by the birds by the time they reach adulthood.
AMBIGUOUS "THEY"
e) 98 percent of men and 75 percent of women who were born in the country, by the time they reached adulthood had been attacked by birds
ATTACKED BY BIRDS should be ATTACKED BY THE BIRDS
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Re: GMAT Prep - Magpie - Tough question [#permalink]

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18 Nov 2009, 06:19
Hey guyzz.... wats the answer ???

'C' for me
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Re: GMAT Prep - Magpie - Tough question [#permalink]

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21 Nov 2009, 23:30
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No OA again.......
Dear moderators, can we have some solution to this problem of people who post questions but no OA.....
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Re: GMAT Prep - Magpie - Tough question [#permalink]

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22 Nov 2009, 07:01
gmatprep-magpie-77464.html
OA-
[Reveal] Spoiler:
C

Can someone explain why "had been attacked" and why not "were attacked as in option D"
is it because "by the time they had reached" implies long duration when attack took place?

riteshbindal wrote:
The first detailed study of magpie attacks in Australia indicates that by the time they had reached adulthood, 98 percent of men and 75 percent of women born in country have been attacked by the birds.

a) by the time they had reached adulthood, 98 percent of men and 75 percent of women born in country have been attacked by the birds
b) by the time they reach adulthood, 98 percent of men and 75 percent of women, who were born in the country, had been attacked by birds.
c) by the time they reach adulthood, 98 percent of men and 75 percent of the women born in the country had been attacked by the birds.
d) 98 percent of the men and 75 percent of the women that were born in the country were attacked by the birds by the time they reach adulthood.
e) 98 percent of men and 75 percent of women who were born in the country, by the time they reached adulthood had been attacked by birds

OA after some discussion.

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Re: GMAT Prep - Magpie - Tough question [#permalink]

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22 Nov 2009, 09:03
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nitya34 wrote:
http://gmatclub.com/forum/gmatprep-magpie-77464.html
OA-
[Reveal] Spoiler:
C

Can someone explain why "had been attacked" and why not "were attacked as in option D"
is it because "by the time they had reached" implies long duration when attack took place?

This is an example of a past perfect verb usage, both events occurred in the past. We need to identify which even occurred earlier in the past and use the past perfect verb usage with it. In this case clearly the people were attacked by birds before they reached adulthood, hence we use the past participle form of were - had been.

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Last edited by atish on 23 Nov 2009, 07:58, edited 1 time in total.
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Re: GMAT Prep - Magpie - Tough question [#permalink]

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22 Nov 2009, 14:43
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There is a typo in option C because it uses present simple and should use past simple.

The first detailed study of magpie attacks in Australia indicates that by the time they had reached adulthood, 98 percent of men and 75 percent of women born in the country have been attacked by the birds.

a.) by the time they had reached adulthood, 98 percent of men and 75 percent of women born in the country have been attacked by the birds.
b.) by the time they reach adulthood, 98 percent of men and 75 percent of women, who were born in the country, had been attacked by the birds
c.) by the time they reached adulthood, 98 percent of men and 75 percent of women born in the country had been attacked by the birds
d.) 98 percent of men and 75 percent of women that were born in the country were attacked by the birds by the time they reach adulthood
e.) 98 percent of men and 75 percent of women who were born in the country, by the time they reached adulthood had been attacked by the birds

Some people have said that the pronoun they is not ambiguous only in E, I'd like to read the reasoning because for me if you want to argue that they is ambiguous is ambiguous in all the answer choices.

the sentence is testing verb tense

A) they had reached adulthood .... have been attacked --> incorrect you use the past perfect with the simple past
C) they reached adulthood .... had been attacked ---> correct. Explains the sequence of events.
D) were attacked ... by the time they reach ---> past simple and present simple, this doesn't make any sense.
E) by the time they reached adulthood had been attacked by the birds
the problem with this option is that does not set off commas "by the time they reached adulthood", so you have an awkward construction
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Re: GMAT Prep - Magpie - Tough question [#permalink]

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22 Nov 2009, 23:12
riteshbindal wrote:
The first detailed study of magpie attacks in Australia indicates that by the time they had reached adulthood, 98 percent of men and 75 percent of women born in country have been attacked by the birds.

a) by the time they had reached adulthood, 98 percent of men and 75 percent of women born in country have been attacked by the birds
b) by the time they reach adulthood, 98 percent of men and 75 percent of women, who were born in the country, had been attacked by birds.
c) by the time they reach adulthood, 98 percent of men and 75 percent of the women born in the country had been attacked by the birds.
d) 98 percent of the men and 75 percent of the women that were born in the country were attacked by the birds by the time they reach adulthood.
e) 98 percent of men and 75 percent of women who were born in the country, by the time they reached adulthood had been attacked by birds

OA after some discussion.

I know "they" in D is ambigious however "had been attacked" in ABCE is clearly a wrong verb.

So go with D too.
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Re: GMAT Prep - Magpie - Tough question [#permalink]

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22 Nov 2009, 23:28
IMO C....
Time clue here is by the time....hence we'll use had been.
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Re: GMAT Prep - Magpie - Tough question [#permalink]

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02 Aug 2010, 03:58
atish wrote:
nitya34 wrote:
http://gmatclub.com/forum/gmatprep-magpie-77464.html
OA-
[Reveal] Spoiler:
C

Can someone explain why "had been attacked" and why not "were attacked as in option D"
is it because "by the time they had reached" implies long duration when attack took place?

This is an example of a past perfect verb usage, both events occurred in the past. We need to identify which even occurred earlier in the past and use the past perfect verb usage with it. In this case clearly the people were attacked by birds before they reached adulthood, hence we use the past participle form of were - had been.

ok, i agree with that, but in E the verb tenses are the same as those in C.
thanks.
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Re: GMAT Prep - Magpie - Tough question [#permalink]

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25 Aug 2010, 00:08
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I think there's a misprint in (C) and the choice should look like this:

c) by the time they reached adulthood, 98 percent of men and 75 percent of the women born in the country had been attacked by the birds.

Please correct me if I'm wrong.
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Re: GMAT Prep - Magpie - Tough question [#permalink]

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25 Aug 2010, 08:43
noboru wrote:
atish wrote:
nitya34 wrote:
http://gmatclub.com/forum/gmatprep-magpie-77464.html
OA-
[Reveal] Spoiler:
C

Can someone explain why "had been attacked" and why not "were attacked as in option D"
is it because "by the time they had reached" implies long duration when attack took place?

This is an example of a past perfect verb usage, both events occurred in the past. We need to identify which even occurred earlier in the past and use the past perfect verb usage with it. In this case clearly the people were attacked by birds before they reached adulthood, hence we use the past participle form of were - had been.

ok, i agree with that, but in E the verb tenses are the same as those in C.
thanks.

nobody is going to clarify this?
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Re: GMAT Prep - Magpie - Tough question [#permalink]

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25 Aug 2010, 10:04
noboru wrote:
noboru wrote:
atish wrote:

This is an example of a past perfect verb usage, both events occurred in the past. We need to identify which even occurred earlier in the past and use the past perfect verb usage with it. In this case clearly the people were attacked by birds before they reached adulthood, hence we use the past participle form of were - had been.

ok, i agree with that, but in E the verb tenses are the same as those in C.
thanks.

nobody is going to clarify this?

if we take a look at E,
98 percent of men and 75 percent of women who were born in the country, by the time they reached adulthood had been attacked by birds

there is no comma between they reached adulthood and had been attacked which makes the sentence awkward

C is Correct
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Re: The first detailed study of magpie attacks in Australia [#permalink]

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03 Aug 2014, 18:12
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Re: The first detailed study of magpie attacks in Australia [#permalink]

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29 Aug 2014, 23:06
in C I see 75 percent of "the" women born in the country. In this case, born in the country seems to modify only women and not 98 percent of men. Is this a correct observation? Please help...thanks
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Re: The first detailed study of magpie attacks in Australia [#permalink]

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25 Dec 2015, 10:55
Hello from the GMAT Club VerbalBot!

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Re: The first detailed study of magpie attacks in Australia   [#permalink] 25 Dec 2015, 10:55
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