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Magnetic fields

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Magnetic fields [#permalink] New post 26 May 2007, 16:40
Hoping that this has not been discussed earlier...

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
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Re: Magnetic fields [#permalink] New post 26 May 2007, 18:02
jho1 wrote:
Hoping that this has not been discussed earlier...

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



Answer should be "E". What is OA?
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Re: Magnetic fields [#permalink] New post 26 May 2007, 20:36
jho1 wrote:
Hoping that this has not been discussed earlier...

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








A...
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 [#permalink] New post 26 May 2007, 21:30
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 - Use of “which”
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 – changes the meaning.
E. 200,000 of that type existing worldwide and can interfere with pacemakers, and – changes the meaning.

B - Eliminate - "which" is redundant.
D & E - Changes the meaning.

Left with A & C

C - talks about the pacemakers hence also changes the meaning. But the sentence is about the magnetic fields.

Hence the answer is A.
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 [#permalink] New post 27 May 2007, 04:40
A must be answer
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 [#permalink] New post 27 May 2007, 05:32
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 - Correct

If we remove the bracketed portion, we still get a defined stem for the sentence: Researchers have announced that the magnetic fields emitted by one manufacturer’s security surveillance system can interfere with pacemakers and that this interaction can bring on missed or irregular heartbeats, nausea, breathlessness, dizziness, and even fainting. "that" usage makes the sentence parallel as well

B. of which, worldwide, there are 200,000 of that type, and which can interfere with pacemakers, and

No defined stem as the which before can interfere makes the portion a clause instead of a predicate that is required here.Other problem is the comma before 'and' is wrong - Option B is incorrect


C. (of which type there are 200,000 worldwide,) they can interfere with pacemakers and

Again if we omit the bracket out portion, the sentence stands as : Researchers have announced that the magnetic fields emitted by one manufacturer’s security surveillance system they can interfere with pacemakers and this interaction can bring on missed or irregular heartbeats, nausea, breathlessness, dizziness, and even fainting. - the they in the sentence breaks the flow. Option C is Incorrect

D. 200,000 of which type exist worldwide, interfering with pacemakers, and

Same problem as B's. interfering makes the required predicate a gerund . Inappropriate usage. D is incorrect. Other problem is the comma before 'and' is wrong

E. 200,000 of that type existing worldwide and can interfere with pacemakers, and
Other problem is the comma before 'and' is wrong
and breaks the normal flow of the sentence. Incorrect
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 [#permalink] New post 27 May 2007, 10:57
Nothing seems to be wrong with A
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Re: Magnetic fields [#permalink] New post 28 May 2007, 15:23
jho1 wrote:
Hoping that this has not been discussed earlier...

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


Yes. A is the answer. But I found wrong answer in the set. It said D...but no way to be D.. should be A.
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 [#permalink] New post 28 May 2007, 15:35
should be A.
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 [#permalink] New post 29 May 2007, 21:41
Researchers have announced that X and that Y the bold portion is a give away.

A !
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 [#permalink] New post 30 May 2007, 00:32
A
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 [#permalink] New post 30 May 2007, 17:07
Another A
  [#permalink] 30 May 2007, 17:07
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