It is currently 27 Jun 2017, 09:27

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

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

Author Message
TAGS:

### Hide Tags

Manager
Joined: 04 Jan 2011
Posts: 75
A drug that is highly effective in treating many types of [#permalink]

### Show Tags

13 Mar 2011, 19:48
1
KUDOS
00:00

Difficulty:

5% (low)

Question Stats:

86% (01:49) correct 14% (00:47) wrong based on 366 sessions

### HideShow timer Statistics

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.
[Reveal] Spoiler: OA
Senior Manager
Joined: 09 Feb 2011
Posts: 279
Concentration: General Management, Social Entrepreneurship
Schools: HBS '14 (A)
GMAT 1: 770 Q50 V47
Re: bark of the ibora tree [#permalink]

### Show Tags

13 Mar 2011, 21:02
1
KUDOS
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.
Manager
Joined: 21 Oct 2007
Posts: 198
GRE 1: 1250 Q780 V540
Re: bark of the ibora tree [#permalink]

### Show Tags

14 Mar 2011, 13:34
vivesomnium wrote:
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.

i too chose D as it says we have a way to grow the ibore.
_________________

If you like my post, please press Kudos+1

Manager
Joined: 10 Nov 2010
Posts: 162
Re: bark of the ibora tree [#permalink]

### Show Tags

14 Mar 2011, 21:21
I also choose "D".
Please refer to http://www.manhattangmat.com/forums/a-d ... t3788.html for the correct answer.It is D.
Manager
Joined: 04 Jan 2011
Posts: 75
Re: bark of the ibora tree [#permalink]

### Show Tags

15 Mar 2011, 20:28
Thanks...guess my source of answer is incorrect...
Intern
Joined: 23 May 2013
Posts: 1
Re: bark of the ibora tree [#permalink]

### Show Tags

11 Feb 2014, 05:35
Hii i just saw that the question is weaken the argument and not the conclusion that is after therefore

I am not justifying the answer
Intern
Joined: 31 Jul 2016
Posts: 5
Re: A drug that is highly effective in treating many types of [#permalink]

### Show Tags

01 Aug 2016, 21:47
1
KUDOS
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.
Senior Manager
Joined: 07 Sep 2014
Posts: 376
Concentration: Finance, Marketing
Re: A drug that is highly effective in treating many types of [#permalink]

### Show Tags

02 Aug 2016, 00:44
Prethinking

1} if only mg amount of bark is required..then 1kg is enough

forever..no extinction
2} if tree capable to grow nAturally at such a rate that it will replace tree that has been cut

D and e seems contender. D more strong..if you can save cutting you can cultivate it any time you want.
E ~ currently not accessible ~ you may reach it or you may not.

Imo d

Sent from my Moto G (4) using GMAT Club Forum mobile app
Re: A drug that is highly effective in treating many types of   [#permalink] 02 Aug 2016, 00:44
Similar topics Replies Last post
Similar
Topics:
Asthmagon was long considered the most effective of the drugs known as 5 19 May 2017, 01:22
4 Private tutoring was found to be highly effective 3 23 Oct 2016, 07:32
6 Antibiotics prove to be the only effective means of treating 9 24 Jun 2017, 18:34
6 A drug that is highly effective in treating certain types of 31 24 Mar 2013, 13:22
13 Many consumers are concerned about the ecological effects of 14 19 Nov 2016, 15:09
Display posts from previous: Sort by