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A company plans to develop a prototype weeding machine that

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 [#permalink] New post 01 Nov 2006, 12:15
A for me 2
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 [#permalink] New post 01 Nov 2006, 21:36
I would go for D too.

A. Weeds come in different shades does not in any way support the ability to differentiate b/w crop and weed.
B. Doesn't necessarily support it
C. Goes against the statement
D. Genetic modification of crops to have the same shade leads to standardization that will enable differentiating b/w crops and weeds
E. Out of scope
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Re: CR - 11/33 [#permalink] New post 01 Nov 2006, 21:46
D

A. There is a considerable degree of variation in shade of color between weeds of different species.
- irrelevant. We are concerned with the difference between shades of crops and weeds, not just between the weeds.

B. The shade of color of some plants tends to change appreciably over the course of their growing season.
- weakens.

C. When crops are weeded manually, overall size and leaf shape are taken into account in distinguishing crop plants from weeds.
- irrelevant.

D. Selection and genetic manipulation allow plants of virtually any species to be economically bred to have a distinctive shade of color without altering their other characteristics.
- CORRECT. Provides a perfect explanation as to how the new technology could be really useful.

E. Farm laborers who are responsible for the manual weeding of crops carry out other agricultural duties at times in the growing season when extensive weeding is not necessary.
- irrelevant.
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 [#permalink] New post 01 Nov 2006, 21:47
My choice is D....
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Re: CR - 11/33 [#permalink] New post 01 Nov 2006, 23:37
The basis of the argument is that the diff in color between the crops and the weed will guide the weeding machine. If all crops have the same distinctive shade, there will be a marked diff between the crops and the weed.
Hence D.
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 [#permalink] New post 01 Nov 2006, 23:43
D 2
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 [#permalink] New post 02 Nov 2006, 00:09
I'm with D gang !
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 [#permalink] New post 02 Nov 2006, 04:13
One more member in D gang..
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 [#permalink] New post 03 Nov 2006, 20:10
No doubt, Answer is D =)
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A company plans to develop a prototype weeding machine that [#permalink] New post 06 Jan 2008, 06:25
A company plans to develop a prototype weeding machine that uses cutting blades with optical sensors and microprocessors that distinguish weeds from crop plants by
differences in shade of color. The inventor of the machine claims that it will reduce labor costs by virtually eliminating the need for manual weeding.

Which of the following is a consideration in favor of the company’s implementing its plan to develop the prototype?

A. There is a considerable degree of variation in shade of color between weeds of different species.
B. The shade of color of some plants tends to change appreciably over the course of their growing season.
C. When crops are weeded manually, overall size and leaf shape are taken into account in distinguishing crop plants from weeds.
D. Selection and genetic manipulation allow plants of virtually any species to be economically bred to have a distinctive shade of color without altering their other characteristics.
E. Farm laborers who are responsible for the manual weeding of crops carry out other agricultural duties at times in the growing season when extensive weeding is not necessary
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Re: cr- consideration in favour [#permalink] New post 06 Jan 2008, 07:11
D

If some method can ensure a standard color either for the crops or the weeds the plan becomes effective.
in D methods ensure crops will have same color hence is in line with the company's plan
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Re: cr- consideration in favour [#permalink] New post 06 Jan 2008, 07:22
klepto wrote:
D

If some method can ensure a standard color either for the crops or the weeds the plan becomes effective.
in D methods ensure crops will have same color hence is in line with the company's plan



ok
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Re: cr- consideration in favour [#permalink] New post 07 Jan 2008, 05:04
D it is
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Re: cr- consideration in favour [#permalink] New post 20 Feb 2008, 18:36
c? What is the OA?
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Re: cr- consideration in favour [#permalink] New post 21 Feb 2008, 06:29
I thought C too.

Since it favors the plan.
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Re: cr- consideration in favour [#permalink] New post 21 Feb 2008, 06:56
would say D. It favors the use of the machine as there won't be any variable factor as color.
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Re: cr- consideration in favour [#permalink] New post 21 Feb 2008, 07:29
D
--

C doesn't have any relation with weeding machine
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A company plans to develop a prototype weeding machine that [#permalink] New post 08 Sep 2010, 14:52
A company plans to develop a prototype weeding machine that uses cutting blades with
optical sensors and microprocessors that distinguish weeds from crop plants by
differences in shade of color. The inventor of the machine claims that it will reduce labor
costs by virtually eliminating the need for manual weeding.
Which of the following is a consideration in favor of the company’s implementing its
plan to develop the prototype?
A. There is a considerable degree of variation in shade of color between weeds of
different species.
B. The shade of color of some plants tends to change appreciably over the course of
their growing season.
C. When crops are weeded manually, overall size and leaf shape are taken into
account in distinguishing crop plants from weeds.
D. Selection and genetic manipulation allow plants of virtually any species to be
economically bred to have a distinctive shade of color without altering their other
characteristics.
E. Farm laborers who are responsible for the manual weeding of crops carry out
other agricultural duties at times in the growing season when extensive weeding is
not necessary.
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Re: 8 real PBT GMAT(7)......please provide explanation of all op [#permalink] New post 08 Sep 2010, 20:13
karanrajmishra wrote:
A company plans to develop a prototype weeding machine that uses cutting blades with
optical sensors and microprocessors that distinguish weeds from crop plants by
differences in shade of color. The inventor of the machine claims that it will reduce labor
costs by virtually eliminating the need for manual weeding.
Which of the following is a consideration in favor of the company’s implementing its
plan to develop the prototype?
A. There is a considerable degree of variation in shade of color between weeds of
different species.
Greater variation would only make it harder for the machine to distinguish.
B. The shade of color of some plants tends to change appreciably over the course of
their growing season.
Does not help the machine
C. When crops are weeded manually, overall size and leaf shape are taken into
account in distinguishing crop plants from weeds.
Irrelevant
D. Selection and genetic manipulation allow plants of virtually any species to be
economically bred to have a distinctive shade of color without altering their other
characteristics.
Distinct colors will the machine more effective.
E. Farm laborers who are responsible for the manual weeding of crops carry out
other agricultural duties at times in the growing season when extensive weeding is
not necessary.
Not relevant, "when extensive weeding is not necessary"
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Your OA is wrong, this is a OG verbal problem.
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Re: 8 real PBT GMAT(7)......please provide explanation of all op [#permalink] New post 08 Sep 2010, 20:53
is OA really A? A seems to work if the weeds can be differentiated for different colors. D seems ok too but i am not sure D is correct because the info seems to be brand new and they would need to genetic enhance everything?
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Re: 8 real PBT GMAT(7)......please provide explanation of all op   [#permalink] 08 Sep 2010, 20:53
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