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# A drug that is highly effective in treating many types of infection ca

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A drug that is highly effective in treating many types of infection ca  [#permalink]

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18 Aug 2006, 19:31
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Question Stats:

89% (01:04) correct 11% (01:23) wrong based on 1920 sessions

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A drug that is highly effective in treating many types of infection can, at present, be obtained only from the bark of the ibora, a tree that is quite rare in the wild. It takes the bark of 5,000 trees to make one kilogram of the drug. It follows, therefore, that continued production of the drug must inevitably lead to the ibora's extinction.

Which of the following, if true, most seriously weakens the argument above?

(A) The drug made from ibora bark is dispensed to doctors from a central authority.
(B) The drug made from ibora bark is expensive to produce.
(C) The leaves of the ibora are used in a number of medical products.
(D) The ibora can be propagated from cuttings and grown under cultivation.
(E) The ibora generally grows in largely inaccessible places.

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Re: A drug that is highly effective in treating many types of infection ca  [#permalink]

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13 Mar 2011, 21:02
2
answer should be D. If the tree is inaccessible, it means that the drug would be not produced. however, that is not an option. the question clearly states- continued production of the drug as a given, and the assumption is that it will lead to extinction of the tree. that has to be challenged, and the fact that ibora can grow from cutting and under cultivation means that even if the drug continues to be produced, more and more Ibora trees can be grown.
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Re: A drug that is highly effective in treating many types of infection ca  [#permalink]

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26 Mar 2012, 14:20
2
How is (E) not a good answer?

We are talking about extinction. If they can't access it, it will continue to exist.

D is good too.

Hi,
E could imply that it is impossible to produce large quantities of drugs as the ibora would be difficult to obtain but to me it a very indirect and far fetched fact.

D is direct and to the central point.

It worries me what you mention that the CR100 has some/many errors, does anybody know of a list of known errors in the answers? I spent a lot of time thinking why I answered incorrectly when the OA seemed really wrong

Do you know if the SC & RC1000 have the same problem?

Thanks
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Re: A drug that is highly effective in treating many types of infection ca  [#permalink]

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18 Apr 2014, 07:36
1
sperinko wrote:
A drug that is highly effective in treating many types of infection can, at present, be obtained only from the bark of the ibora, a tree that is quite rare in the wild. It takes the bark of 5,000 trees to make one kilogram of the drug. It follows, therefore, that continued production of the drug must inevitably lead to the iboraâ€™s extinction.

Which of the following, if true, most seriously weakens the argument above?

(A) The drug made from ibora bark is dispensed to doctors from a central authority.
(B) The drug made from ibora bark is expensive to produce.
(C) The leaves of the ibora are used in a number of medical products.
(D) The ibora can be propagated from cuttings and grown under cultivation.
(E) The ibora generally grows in largely inaccessible places.

Conclusion: that continued production of the drug must inevitably lead to the iboraâ€™s extinction.
Assumptions:
That drug is made only from Ibora tree
Number of trees grown proportion is less compared trees being cut for making the drug

Let me try analyzing the options:
(A) The drug made from ibora bark is dispensed to doctors from a central authority. - Irrelevant - Dispensed to doctor from central authority has nothing to do with the extenction of the tree
(B) The drug made from ibora bark is expensive to produce. - Out of scope - Expensive to produce - But this have nothing to with distinction. Even if its extensive the drun will be made and info expensive is out of scope
(C) The leaves of the ibora are used in a number of medical products. - May be strengthener - becuase the leaves are used in number of medical products which help in extenction of this Ibora tree
(D) The ibora can be propagated from cuttings and grown under cultivation. - Good weakener - Because if these trees are grown in cultiavation then this can give an alternate view for the Ibora extinction i.e. Conclusion
(E) The ibora generally grows in largely inaccessible places - Irreveleant
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Re: A drug that is highly effective in treating many types of infection ca  [#permalink]

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25 Sep 2014, 05:47
1
him1985 wrote:
VarunBhardwaj wrote:
Can somebody please tell why E in incorrect ?
Quote:
The ibora generally grows in largely inaccessible places.

If the tree grows in inaccessible area then no way one could cut it.So, The tree cant extinct !

If no once can cut trees, then how drug can be made?
We need to weaken the conclusion, so if we can grow trees by any other method then there is no question of extinction.

Thanks for the reply.

The question stem is "Which of the following, if true, most seriously weakens the argument above?" So, We can safely assume that the option can be considered to be true.

Moreover, The option says largely inaccessible places NOT completely ! So, The drug was made with accessible area.And if there will be there in inaccessible area then it cant extinct.

I agree that D is also a weakener but i want to know why E is wrong ?[/quote]

Focus on Argument:
Premise 1: A drug that is highly effective in treating many types of infection can, at present, be obtained only from the bark of the ibora, a tree that is quite rare in the wild. Premise 2: It takes the bark of 5,000 trees to make one kilogram of the drug.
Conclusion : It follows, therefore, that continued production of the drug must inevitably lead to the iboraâ€™s extinction.

Now lets prethink that what author assumes while concluding his conclusion

- There is not any Law that prohibit cutting of trees
- There not any possibility for a new method by which that can be made in near future.
- There is no possibility for growing trees.

Now attack on the assumptions of author to weaken conclusion. Additionally answer choice must present some new relevant information.
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Re: A drug that is highly effective in treating many types of infection ca  [#permalink]

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01 Aug 2016, 21:47
1
Hello! I am beginner here. The following tips helped me a lot to find the accurate answer.
1. Identifying & summarising conclusion
Perpetuating production of the drug will most likely to destroy Ibora.
2. Identifying & summarising premise
5000 Ibora trees are required to make 1kg of drug
High effectiveness in treatment leads to demand
Ibora is already rare tree in the wild.
3. Identifying possible assumption:
- Medical innovation to artificially create drug which has equal effectiveness as Ibora
- To plant Ibora
- Making it illegal

(A) The drug made from ibora bark is dispensed to doctors from a central authority.
Giving out drug will enable drug production. Therefore, it is STRENGTHENING the conclusion.
(B) The drug made from ibora bark is expensive to produce.
Inclusive purchase can be done with the people who has enough money to buy the drug.
(C) The leaves of the ibora are used in a number of medical products.
It is indicating uses of Ibora tree for medical purpose. It is NOT weakening the conclusion.
(D) The ibora can be propagated from cuttings and grown under cultivation.
This option is clearly weakening the conclusion. Because, as stated in the assumption, planting Ibora can be solution to prevent from extinction.
(E) The ibora generally grows in largely inaccessible places.
Even though, there is some difficulties, it doesn't mean that the production will be ceased.
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Re: A drug that is highly effective in treating many types of infection ca  [#permalink]

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29 Nov 2017, 06:49
1
sumanainampudi wrote:
fanatico wrote:
A drug that is highly effective in treating many types of infection can, at present, be obtained only from the bark of the ibora, a tree that is quite rare in the wild. It takes the bark of 5,000 trees to make one kilogram of the drug. It follows, therefore, that continued production of the drug must inevitably lead to the ibora’s extinction.
Which of the following, if true, most seriously weakens the argument above?
(A) The drug made from ibora bark is dispensed to doctors from a central authority.
(B) The drug made from ibora bark is expensive to produce.
(C) The leaves of the ibora are used in a number of medical products.
(D) The ibora can be propagated from cuttings and grown under cultivation.
(E) The ibora generally grows in largely inaccessible places.

Can someone please explain why cant E be the right answer. If ibore is grows in inaccessible places, then those plants could not be used for production of the drug. Therefore those plants still remain in some inaccessible places.

We need to weaken that continued production of the drug must inevitably lead to the ibora’s extinction. So the cocnclusion talks about a post effect of production of drug; the drug is already produced as per the conclusion. E is questioning something that is assumed to be happening in the main conclusion. Weaken the result of action and not the action itself.
As per your query ("...then those plants could not be used for production of the drug."), E is weakening the action at the first place, which is taken to be true in the conclusion.
Hope it helped.
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Re: A drug that is highly effective in treating many types of infection ca  [#permalink]

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25 Mar 2012, 04:04
How is (E) not a good answer?

We are talking about extinction. If they can't access it, it will continue to exist.

D is good too.
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Re: A drug that is highly effective in treating many types of infection ca  [#permalink]

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25 Sep 2014, 04:37
VarunBhardwaj wrote:
Can somebody please tell why E in incorrect ?
Quote:
The ibora generally grows in largely inaccessible places.

If the tree grows in inaccessible area then no way one could cut it.So, The tree cant extinct !

If no once can cut trees, then how drug can be made?
We need to weaken the conclusion, so if we can grow trees by any other method then there is no question of extinction.
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Re: A drug that is highly effective in treating many types of infection ca  [#permalink]

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25 Sep 2014, 05:03
him1985 wrote:
VarunBhardwaj wrote:
Can somebody please tell why E in incorrect ?
Quote:
The ibora generally grows in largely inaccessible places.

If the tree grows in inaccessible area then no way one could cut it.So, The tree cant extinct !

If no once can cut trees, then how drug can be made?
We need to weaken the conclusion, so if we can grow trees by any other method then there is no question of extinction.

Thanks for the reply.

The question stem is "Which of the following, if true, most seriously weakens the argument above?" So, We can safely assume that the option can be considered to be true.

Moreover, The option says largely inaccessible places NOT completely ! So, The drug was made with accessible area.And if there will be there in inaccessible area then it cant extinct.

I agree that D is also a weakener but i want to know why E is wrong ?
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Re: A drug that is highly effective in treating many types of infection ca  [#permalink]

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09 Jul 2017, 10:41
1
Conclusion: Production of Ibora will eventually lead to its extinction
Premise 1: Ibora effective in treating many infections
Premise 2: A lot of Ibora bark needed to produce a small quantity of medicine
We need to find the answer that weakens the conclusion

(A) The drug made from ibora bark is dispensed to doctors from a central authority. - Does this weaken the conclusion? NO. If anything this is out of scope. We are not focused on how the drug is dispensed. Only its creation.

(B) The drug made from ibora bark is expensive to produce.- Does this weaken the conclusion? NO. If anything this strengthens the premise that Ibora is rare and thus expensive.

(C) The leaves of the ibora are used in a number of medical products - Does this weaken the conclusion? NO. This strengthens the usefulness of Ibora and hence more might be needed. Does not focus on the creation.

(D) The ibora can be propagated from cuttings and grown under cultivation. Does this weaken the conclusion?YES. If we can grow Ibora artificially, we can reduce the impact on its wild population thus probably avoid its extinction. Although this does not demolish the conclusion, it certainly weakens it.

(E) The ibora generally grows in largely inaccessible places.- Does this weaken the conclusion? NO. This is out of scope. The location where Iboras grow does not matter because the premise clearly says we are already harvesting it to a large extent.
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Re: A drug that is highly effective in treating many types of infection ca  [#permalink]

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29 Nov 2017, 04:56
fanatico wrote:
A drug that is highly effective in treating many types of infection can, at present, be obtained only from the bark of the ibora, a tree that is quite rare in the wild. It takes the bark of 5,000 trees to make one kilogram of the drug. It follows, therefore, that continued production of the drug must inevitably lead to the ibora’s extinction.
Which of the following, if true, most seriously weakens the argument above?
(A) The drug made from ibora bark is dispensed to doctors from a central authority.
(B) The drug made from ibora bark is expensive to produce.
(C) The leaves of the ibora are used in a number of medical products.
(D) The ibora can be propagated from cuttings and grown under cultivation.
(E) The ibora generally grows in largely inaccessible places.

Can someone please explain why cant E be the right answer. If ibore is grows in inaccessible places, then those plants could not be used for production of the drug. Therefore those plants still remain in some inaccessible places.
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11 Aug 2019, 04:04
Earlier i chose E as i misread "... can be obtained ONLY from tree bark" as "can be obtained ONLY from a rare wild tree"

D would be wrong and considered out of scope if the premise state "... can be obtained ONLY from a rare wild tree".
A Cultivated ibora would be out of scope.

But this is not the case, it was mentioned "ONLY from the bark" , a tree which grown in the wild.
It NEVER mentioned it can ONLY be obtained from a wild ibora.

Therefore, it is possible that be cultivated

I think those who got this for E is because of misreading "ONLY"

Posted from my mobile device
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A drug that is highly effective in treating many types of infection ca   [#permalink] 11 Aug 2019, 04:04
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