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Innovators are developing a new cutting machine that hopes

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Innovators are developing a new cutting machine that hopes [#permalink] New post 02 Nov 2012, 23:04
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Innovators are developing a new cutting machine that hopes to distinguish weeds from agricultural crops by use of the latest technology in sensors. The differences in shade of color will be the basis for making the distinction. In their pitch to venture capitalists, the innovators point to the ability to lower labor costs by completely removing 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)

Some plants change the shade of their color considerably as they grow.

(B)

When weeding may not be found necessary laborers engaged in that work can find other jobs in agriculture during the growing season.

(C)

While weeds are being removed manually, the prime consideration to identify them is the shape of the leaf and its overall size.

(D)

Genetic manipulation will allow any species of plants to be bred economically, so that it can have a distinctive shade, color and other characteristics remaining unaltered.

(E)

Different species of weeds show considerable variations in the shade of their color.

---
Hi,
I'd like some thoughts on how to eliminate some answer choices and get to the eventual answer.
Many thanks.
[Reveal] Spoiler: OA
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Re: Innovators are developing a new cutting machine [#permalink] New post 03 Nov 2012, 00:08
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elegan wrote:
Innovators are developing a new cutting machine that hopes to distinguish weeds from agricultural crops by use of the latest technology in sensors. The differences in shade of color will be the basis for making the distinction. In their pitch to venture capitalists, the innovators point to the ability to lower labor costs by completely removing 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)

Some plants change the shade of their color considerably as they grow.

(B)

When weeding may not be found necessary laborers engaged in that work can find other jobs in agriculture during the growing season.

(C)

While weeds are being removed manually, the prime consideration to identify them is the shape of the leaf and its overall size.

(D)

Genetic manipulation will allow any species of plants to be bred economically, so that it can have a distinctive shade, color and other characteristics remaining unaltered.

(E)

Different species of weeds show considerable variations in the shade of their color.

---
Hi,
I'd like some thoughts on how to eliminate some answer choices and get to the eventual answer.
Many thanks.


A - Could Weaken. If the color of the plants keeps changing, the sensors might not be able to differentiate between crops and weeds effectively.

B - Out of scope. We are only concerned about the effectiveness of the technology.

C - Could weaken. If the weeds are identified by their shape and not by their color, the technology might not be very effective.

D - Strengthens. If the crops can be grown to be of uniform color, then they can be easily distinguished from the weeds and hence the technology would be more effective.
E - Could Weaken. If the color of the weeds are not consistent, then the technology might have trouble sensing them.

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Re: Innovators are developing a new cutting machine   [#permalink] 03 Nov 2012, 00:08
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