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Elephants have an exceptional memory

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Elephants have an exceptional memory [#permalink] New post 30 Sep 2013, 20:56
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64% (02:21) correct 36% (01:21) wrong based on 194 sessions
Elephants have an exceptional memory, enabling them to find their way in areas which they have not frequented in many years. A new zoological research has discovered that this ability can be further enhanced by fixing the leading elephant with blinders, thereby greatly limiting its field of vision.

Which of the following hypotheses best explains the contrast described above?

A.) The leading elephant is able to avoid stumbling over even with the proposed blinders.

B.) Elephants' memory is not visual, but rather relies on their sense of smell

C.) Elephants with blinders on find it harder to recognize surroundings, because it is harder for them to compare the current visual sensation with the remembered one.

D.) An elephants' sense of smell, which is its best memory aid, is hindered by visual distractions.

E.) Elephants' eyes are relatively weak and a secondary sense, whereas an elephants' sense of smell is particularly advanced.

Source: Economist Tutor
[Reveal] Spoiler: OA
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Re: Elephants have an exceptional memory [#permalink] New post 30 Sep 2013, 21:41
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The argument tells us 2 things

1. Elephants has good memory.

2. Fixing the leading elephant vision with blinders, thereby greatly limiting its field of vision.

We need to find a alternate explanation to resolve the paradox and select a option in which both statement in the premise remains true.

So lets do the POE,

A. It doesn't explain why blinders will help elephants(Eliminate)
B. This is a pit fall- It doesn't explain why elephants can remember better with blinders.(Eliminate)
C. Opposite- This increases the paradox.(Eliminate)
D. Looks good- It says elephants can remember better with blinders.(Hold)
E. It doesn't explain properly about the elephants memory(Eliminate)


So Answer is D :)
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Re: Elephants have an exceptional memory [#permalink] New post 12 Oct 2013, 02:07
I still don't understand the question? What is it talking abt?
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Re: Elephants have an exceptional memory [#permalink] New post 12 Oct 2013, 03:32
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mohnish104 wrote:
I still don't understand the question? What is it talking abt?

The argument says that the ability of elephants (to find their way in areas which they haven't frequented for several years) can be enhanced by fixing the lead elephant with blinders. The question asks us to explain how this limitation of a sense can actually lead to enhancement of an ability.

D is obviously the right answer.
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Re: Elephants have an exceptional memory   [#permalink] 12 Oct 2013, 03:32
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Elephants have an exceptional memory

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