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# Researchers have announced that the magnetic fields emitted

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Director
Joined: 29 Aug 2005
Posts: 836
Researchers have announced that the magnetic fields emitted [#permalink]

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09 Nov 2008, 15:26
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Researchers have announced that the magnetic fields emitted by one manufacturer’s
security surveillance system, of which type there are 200,000 worldwide, can interfere
with pacemakers and that
this interaction can bring on missed or irregular heartbeats,
nausea, breathlessness, dizziness, and even fainting.
A. of which type there are 200,000 worldwide, can interfere with pacemakers and
that
B. of which, worldwide, there are 200,000 of that type, and which can interfere with
pacemakers, and
C. of which type there are 200,000 worldwide, they can interfere with pacemakers
and
D. 200,000 of which type exist worldwide, interfering with pacemakers, and
E. 200,000 of that type existing worldwide and can interfere with pacemakers, and
VP
Joined: 05 Jul 2008
Posts: 1378
Re: SC: GMAT Set 30 - 20 [#permalink]

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09 Nov 2008, 15:45
botirvoy wrote:
Researchers have announced that the magnetic fields emitted by one manufacturer’s
security surveillance system, of which type there are 200,000 worldwide, can interfere
with pacemakers and that
this interaction can bring on missed or irregular heartbeats,
nausea, breathlessness, dizziness, and even fainting.
A. of which type there are 200,000 worldwide, can interfere with pacemakers and
that
B. of which, worldwide, there are 200,000 of that type, and which can interfere with
pacemakers, and
C. of which type there are 200,000 worldwide, they can interfere with pacemakers
and
D. 200,000 of which type exist worldwide, interfering with pacemakers, and
E. 200,000 of that type existing worldwide and can interfere with pacemakers, and

Whew! Down to D & E as I felt that the exact number refers directly to the SSS.

Ruled out D as I felt that which type is awkward. The dependent clause interfering with pacemakers seems to change the meaning of the sentence.

E is my pick.

Edit: Looks like I totally blew this. Researchers have announced that X and that Y seems to be correct.
Manager
Joined: 19 Aug 2006
Posts: 233
Re: SC: GMAT Set 30 - 20 [#permalink]

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09 Nov 2008, 17:37
Most definitely the answer is A - all other choices are either grammatically incorrect or not concise.
VP
Joined: 18 May 2008
Posts: 1206
Re: SC: GMAT Set 30 - 20 [#permalink]

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09 Nov 2008, 18:16
I go for A for parallelism.
Researchers have announced that..... and that this interaction......
botirvoy wrote:
Researchers have announced that the magnetic fields emitted by one manufacturer’s
security surveillance system, of which type there are 200,000 worldwide, can interfere
with pacemakers and that
this interaction can bring on missed or irregular heartbeats,
nausea, breathlessness, dizziness, and even fainting.
A. of which type there are 200,000 worldwide, can interfere with pacemakers and
that
B. of which, worldwide, there are 200,000 of that type, and which can interfere with
pacemakers, and
C. of which type there are 200,000 worldwide, they can interfere with pacemakers
and
D. 200,000 of which type exist worldwide, interfering with pacemakers, and
E. 200,000 of that type existing worldwide and can interfere with pacemakers, and
Senior Manager
Joined: 19 Nov 2007
Posts: 439
Re: SC: GMAT Set 30 - 20 [#permalink]

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12 Nov 2008, 21:24
A for me.
Another tough one.
Whats the OA?
+1
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Manager
Joined: 24 Sep 2008
Posts: 92
Re: SC: GMAT Set 30 - 20 [#permalink]

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13 Nov 2008, 00:24
"that and that" construction - A is correct
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Re: SC: GMAT Set 30 - 20   [#permalink] 13 Nov 2008, 00:24
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