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A company plans to develop a prototype weeding machine that

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Re: A company plans to develop a prototype weeding machine that [#permalink]

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18 Dec 2016, 23:46
nailin16 wrote:
Why is it not A?

Sent from my HM 1SW using GMAT Club Forum mobile app

Hi nailin16 ,
A. There is a considerable degree of variation in shade of color between weeds of different species. - This statement is likely to make it difficult for prototype weeding machine to distinguish weed from crop plants . The complexity of underlying technology will increase if it has to have optical sensors that can differentiate between considerable degree of variation in shade of color between weeds of different species and crop plants .
At worst it tells that the prototype weeding machine might be unsuccessful and weakens the argument .

Hope this helps!!
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Re: A company plans to develop a prototype weeding machine that [#permalink]

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18 Mar 2017, 08:23
prototype uses optic sensor distinguishing shadows of colours separates weed from crops

we need to find an answer saying this will work:
A: weakens
B: weakens
C: there are other criterias=>out o scope
D: shade of color won't alter=>strenghtens
E: out of scope

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Re: A company plans to develop a prototype weeding machine that [#permalink]

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19 Mar 2017, 18:47
Merged topics
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Re: A company plans to develop a prototype weeding machine that [#permalink]

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26 Mar 2017, 17:20
D - you can adjust crops and therefore differentiate
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Re: A company plans to develop a prototype weeding machine that [#permalink]

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19 Jun 2017, 23:44
Although D is the correct ans. I can't seem to find out option E. Has it been deleted by mistake?
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Re: A company plans to develop a prototype weeding machine that [#permalink]

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21 Jun 2017, 07:52
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. Out of scope
Reasoning: Shades of different species of weed is discussed rather than discussing difference in shades if weed and crop.

B. The shade of color of some plants tends to change appreciably over the course of their growing season. Wrong
Reasoning:This option is generalizing it for all the plants instead of discussing weed and crop.

C. When crops are weeded manually, overall size and leaf shape are taken into account in distinguishing crop plants from weeds. Wrong
Reasoning : Shape and size of the leaves are discussed here and not shades 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
Reasoning : here since we can manipulate the shades of any plant which include weed also we can well distinguish between the crop and weed and the machine work on the principle of shades variation detected it will work and hence the company can produce the prototype

**********************************************

Please do correct me if i have gone somewhere in reasoning.

*********************************************
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Re: A company plans to develop a prototype weeding machine that [#permalink]

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23 Aug 2017, 00:42
"D" is the correct choice, Making crop plants easily distinguishable from weeds would facilitate the effective use of the weeding machine.

I used the elimination method in this, clearly leading me to the right choice.

Reasoning: Looking for the options that favors the company's plans.

A - Greater variation between weed and crop plants is against the idea of using machines
B - Not in favour of using machine - so this is out
C - Not in favour of the benefits derived from the machines - this is also out
E - This does not favor the company's implementing the plan to develop the machine
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Re: A company plans to develop a prototype weeding machine that [#permalink]

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06 Nov 2017, 16:30
test takers can mistake A for the right answer. Nevertheless, A is wrong b/c of "weeds of different species".

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Re: A company plans to develop a prototype weeding machine that [#permalink]

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06 Nov 2017, 19:37
Can someone point of which type of question is it? Strengthen or assumption?

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Re: A company plans to develop a prototype weeding machine that [#permalink]

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07 Nov 2017, 05:21
sevenplusplus wrote:
Can someone point of which type of question is it? Strengthen or assumption?

Hi, the question requires the answer choice that supports the argument. Thus this question is a strengthen question.

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A company plans to develop a prototype weeding machine that [#permalink]

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07 Nov 2017, 19:58
sevenplusplus wrote:
Can someone point of which type of question is it? Strengthen or assumption?

Kaplan or Manhattan can say strengthen is a kind of an assumption, but the two are different. For practice purposes, all test takers often see strengthen and assumption are two different types of question.

The question is strengthen b/c of 2 elements that are in the question: "consideration" & "plan"

"consideration" = "Reason" = "ground" = "support" = .... ; this word is not clear enough to identify a question type.
In the same way, "plan" = "Argument" = "hypothesis" = "statement" =....this word is not clear enough to identify a question type.

Two of them together tells that this is a strengthen question.

There is another type of question: combination of strengthen and explanation. That is, you have to find an answer that strengthens one explanation but weaken the other explanation.

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