Last visit was: 23 Apr 2026, 07:15 It is currently 23 Apr 2026, 07:15
Close
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
Your Progress

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
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Close
Request Expert Reply
Confirm Cancel
User avatar
guerrero25
Joined: 10 Apr 2012
Last visit: 13 Nov 2019
Posts: 244
Own Kudos:
5,201
 [12]
Given Kudos: 325
Location: United States
Concentration: Technology, Other
GPA: 2.44
WE:Project Management (Telecommunications)
Posts: 244
Kudos: 5,201
 [12]
3
Kudos
Add Kudos
9
Bookmarks
Bookmark this Post
User avatar
blueseas
User avatar
Current Student
Joined: 14 Dec 2012
Last visit: 15 Jan 2019
Posts: 572
Own Kudos:
4,535
 [3]
Given Kudos: 197
Location: India
Concentration: General Management, Operations
GMAT 1: 700 Q50 V34
GPA: 3.6
GMAT 1: 700 Q50 V34
Posts: 572
Kudos: 4,535
 [3]
2
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
User avatar
benguy
Joined: 10 Sep 2012
Last visit: 25 Sep 2013
Posts: 19
Own Kudos:
44
 [1]
Given Kudos: 2
Posts: 19
Kudos: 44
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
Zarrolou
Joined: 02 Sep 2012
Last visit: 11 Dec 2013
Posts: 842
Own Kudos:
5,187
 [1]
Given Kudos: 219
Status:Far, far away!
Location: Italy
Concentration: Finance, Entrepreneurship
GPA: 3.8
Posts: 842
Kudos: 5,187
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I would just add my 2 cents on A vs B, because the other options have been already discussed.

Antibiotics prove to be the only effective means of treating some serious diseases.
(...)
activity are likely to be afflicted by various infectious diseases.
Even if the text mentions infectious diseases, we do not know whether antibiotics can cure them because the text does not say so.
(B)Antibiotics are the only effective means of treating some infectious diseases.

(A)Treatment of some diseases (the one treated with antibiotics) always results in reduced immune system activity (they are known to reduce immune system activity).

IMO A
User avatar
BeckyRobinsonTPR
User avatar
Princeton Review Representative
Joined: 17 Jun 2013
Last visit: 19 May 2014
Posts: 146
Own Kudos:
1,021
 [1]
Posts: 146
Kudos: 1,021
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Inference questions ask you to choose the answer which can be show to be true based only on the information in the passage. Correct answers will not bring in new information. This particular questions gives several facts all of which could be related to inferences so it is best to read the passage and then work to eliminate answers on the basis of new information or something that is incorrect on the basis of the text - spending a lot of time predicting answers may not increase speed or accuracy.
guerrero25
Antibiotics prove to be the only effective means of treating some serious diseases. Nevertheless, it cannot be stated that antibiotics are always beneficial for human health, since they are known to reduce immune system activity, and persons with reduced immune system activity are likely to be afflicted by various infectious diseases.

Which of the following statements can be properly inferred from the passage above?
(A)Treatment of some diseases always results in reduced immune system activity.If some diseases are treated by antibiotics and antibiotics are known to reduce immune activity this statement must be true, therefore this is the correct answer
(B)Antibiotics are the only effective means of treating some infectious diseases.This answer seems to be a direct repeat of one of the statements in the paragraph, and as such would be a good answer. However upon closer inspection you notice a word shift. The paragraph uses the word serious diseases and the answer uses infectious diseases. Because the paragraph does not discuss infectious diseases, this cannot be the answer
(C)New medications will be developed in the future to replace antibiotics.[color=#ed1c24]The paragraph does not give any facts about the future, therefore this answer is beyond the subject matter of the argument[/color]
(D)Reduction of immune system activity caused by antibiotics can be avoided by taking some other medications that increase immune system activity.Other medications is beyond the scope of the facts in the argument, thus this cannot be the answer
(E)Antibiotics are the major cause of reduced immune system activity.The words major cause make this out of scope - the paragraph gives no basis for comparison or ranking of causes


OA to follow //
avatar
unceldolan
Joined: 21 Oct 2013
Last visit: 03 Jun 2015
Posts: 151
Own Kudos:
Given Kudos: 19
Location: Germany
GMAT 1: 660 Q45 V36
GPA: 3.51
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hey Guys...if I answer the question, it doesn't show in my question history...it is always stated as "not sure" even though I picked A, which is correct.

Reasoning: B is out of scope, C repeats the statement, D is out of scope and E is out of scope because of the wording "major" cause.

Greets!

PS: I have the same problem with this question: topic-143744.html

Maybe the timer has to be fixed?!

Thanks for your help!
User avatar
semwal
User avatar
Current Student
Joined: 04 May 2013
Last visit: 13 May 2017
Posts: 202
Own Kudos:
Given Kudos: 70
Location: India
Concentration: Operations, Human Resources
Schools: XLRI GM"18
GPA: 4
WE:Human Resources (Human Resources)
Schools: XLRI GM"18
Posts: 202
Kudos: 519
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Antibiotics prove to be the only effectivemeans of treating someserious diseases. Nevertheless, it cannot be stated that antibiotics are always beneficial for human health, since they are known to reduce immune system activity, and persons with reduced immune system activity are likely to be afflicted by various infectious diseases.

Which of the following statements can be properly inferred from the passage above?
(A)Treatment of some diseases always results in reduced immune system activity. SOME DESEASES CAN ONLY BE TREATED BY ANTIBIOTICS, BUT ANTIBIOTICS ARE KNOWN TO REDUCE IMMUNITY...... HENCE THE ANSWER STATEMENT IS CORRECT
(B)Antibiotics are the only effective means of treating some infectious diseases.----NOT SOME INFECTIOUS DESEASES BUT SOME SERIOUSDESEASES---MAY OR NOT BE INFECTIOUS...
(C)New medications will be developed in the future to replace antibiotics.----WHY BE SO OPTIMISTIC.. WHO KNOWS....
(D)Reduction of immune system activity caused by antibiotics can be avoided by taking some other medications that increase immune system activity...NO ONE SAID THAT?.....
(E)Antibiotics are the major cause of reduced immune system activity....ANTIBIOTICS ARE KNOWN TO REDUCE IMMUNITY.....BUT WHO SAID IT'S A MAJOR CAUSE?....


KUDOS IF U PLEASE.....
User avatar
vards
Joined: 25 Feb 2014
Last visit: 21 Jun 2025
Posts: 100
Own Kudos:
Given Kudos: 622
Status:PLAY HARD OR GO HOME
Location: India
Concentration: General Management, Finance
Schools: Mannheim
GMAT 1: 560 Q46 V22
GPA: 3.1
Schools: Mannheim
GMAT 1: 560 Q46 V22
Posts: 100
Kudos: 704
Kudos
Add Kudos
Bookmarks
Bookmark this Post
semwal
Antibiotics prove to be the only effectivemeans of treating someserious diseases. Nevertheless, it cannot be stated that antibiotics are always beneficial for human health, since they are known to reduce immune system activity, and persons with reduced immune system activity are likely to be afflicted by various infectious diseases.

Which of the following statements can be properly inferred from the passage above?
(A)Treatment of some diseases always results in reduced immune system activity. SOME DESEASES CAN ONLY BE TREATED BY ANTIBIOTICS, BUT ANTIBIOTICS ARE KNOWN TO REDUCE IMMUNITY...... HENCE THE ANSWER STATEMENT IS CORRECT
(B)Antibiotics are the only effective means of treating some infectious diseases.----NOT SOME INFECTIOUS DESEASES BUT SOME SERIOUSDESEASES---MAY OR NOT BE INFECTIOUS...
(C)New medications will be developed in the future to replace antibiotics.----WHY BE SO OPTIMISTIC.. WHO KNOWS....
(D)Reduction of immune system activity caused by antibiotics can be avoided by taking some other medications that increase immune system activity...NO ONE SAID THAT?.....
(E)Antibiotics are the major cause of reduced immune system activity....ANTIBIOTICS ARE KNOWN TO REDUCE IMMUNITY.....BUT WHO SAID IT'S A MAJOR CAUSE?....


KUDOS IF U PLEASE.....

hello...!
i dint select A since it dint mention the use of antibiotics in treatment...the treatment can be made from other forms of treatment...specific exercises as prescribed by physician,yoga nd derr many such tretments..wat say?
avatar
perfervid89
Joined: 04 Nov 2014
Last visit: 16 Sep 2021
Posts: 38
Own Kudos:
9
 [1]
Given Kudos: 25
Location: United States (DE)
Concentration: Technology, Finance
GMAT 1: 670 Q49 V32
GMAT 2: 730 Q50 V38
GPA: 3.4
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I am torn between A and B.

I did notice the "infectious diseases" in B, but I went with it because
1. infectious diseases can be serious too, right?
2. extreme phrasing of A. Treatment of some diseases "always results" in reduced immune system activity. Doesnt seem like the kind of language GMAC would use
User avatar
chesstitans
Joined: 12 Dec 2016
Last visit: 20 Nov 2019
Posts: 963
Own Kudos:
Given Kudos: 2,561
Location: United States
GMAT 1: 700 Q49 V33
GPA: 3.64
GMAT 1: 700 Q49 V33
Posts: 963
Kudos: 1,936
Kudos
Add Kudos
Bookmarks
Bookmark this Post
although A sounds extreme, A is correct because of "always"
B is out because it repeats a sentence. This is an inference question.
C is wrong because of "new medication". It can be correct if it says "new antibiotics". In that case, there might be 2 correct answer.
avatar
Prateek176
Joined: 12 Mar 2017
Last visit: 10 Jun 2021
Posts: 172
Own Kudos:
Given Kudos: 87
Location: India
Concentration: Strategy, General Management
GMAT 1: 700 Q49 V37
GPA: 4
GMAT 1: 700 Q49 V37
Posts: 172
Kudos: 92
Kudos
Add Kudos
Bookmarks
Bookmark this Post
VeritasPrepKarishma , abhimahna

I am having trouble solving this question. Although A and B booth look strong contenders, I am finding it difficult to select one of the 2 because of the following reasons:

(A) Treatment of some diseases always results in reduced immune system activity.
Problem: Antibiotics are known to reduce immunity. That doesn't mean that they always do

(B)Antibiotics are the only effective means of treating some infectious diseases.
Problem: It's given that they are the only effective means of treating some serious diseases not infectious diseases

Decided to go with B only to learn that it's the wrong choice
User avatar
abhimahna
User avatar
Board of Directors
Joined: 18 Jul 2015
Last visit: 06 Jul 2024
Posts: 3,481
Own Kudos:
5,779
 [1]
Given Kudos: 346
Status:Emory Goizueta Alum
Products:
Expert
Expert reply
Posts: 3,481
Kudos: 5,779
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
prateek176
VeritasPrepKarishma , abhimahna

I am having trouble solving this question. Although A and B booth look strong contenders, I am finding it difficult to select one of the 2 because of the following reasons:

(A) Treatment of some diseases always results in reduced immune system activity.
Problem: Antibiotics are known to reduce immunity. That doesn't mean that they always do

(B)Antibiotics are the only effective means of treating some infectious diseases.
Problem: It's given that they are the only effective means of treating some serious diseases not infectious diseases

Decided to go with B only to learn that it's the wrong choice

Hey prateek176 ,

I am happy to help. :)

Your reasoning for B is 100% correct and hence it should be rejected.

Now , the key word to note in option A is "some".

A) Treatment of some diseases always results in reduced immune system activity.

Option A tells us there will always be "some" diseases that will reduce the immune system activity because we know that the only means for them to be treated is Antibiotics.

This question can be easily solved if you pay careful attention to each and every word of the answer choices(You did this for B but missed in A. ) :)

Does that make sense?
avatar
Prateek176
Joined: 12 Mar 2017
Last visit: 10 Jun 2021
Posts: 172
Own Kudos:
Given Kudos: 87
Location: India
Concentration: Strategy, General Management
GMAT 1: 700 Q49 V37
GPA: 4
GMAT 1: 700 Q49 V37
Posts: 172
Kudos: 92
Kudos
Add Kudos
Bookmarks
Bookmark this Post
abhimahna
prateek176
VeritasPrepKarishma , abhimahna

I am having trouble solving this question. Although A and B booth look strong contenders, I am finding it difficult to select one of the 2 because of the following reasons:

(A) Treatment of some diseases always results in reduced immune system activity.
Problem: Antibiotics are known to reduce immunity. That doesn't mean that they always do

(B)Antibiotics are the only effective means of treating some infectious diseases.
Problem: It's given that they are the only effective means of treating some serious diseases not infectious diseases

Decided to go with B only to learn that it's the wrong choice

Hey prateek176 ,

I am happy to help. :)

Your reasoning for B is 100% correct and hence it should be rejected.

Now , the key word to note in option A is "some".

A) Treatment of some diseases always results in reduced immune system activity.

Option A tells us there will always be "some" diseases that will reduce the immune system activity because we know that the only means for them to be treated is Antibiotics.

This question can be easily solved if you pay careful attention to each and every word of the answer choices(You did this for B but missed in A. ) :)

Does that make sense?

abhimahna
I understood that Option A tells us there will always be "some" diseases that will reduce the immune system activity because we know that the only means for them to be treated is Antibiotics.
However, Antibiotics are known to reduce immunity(as written in second line). That doesn't mean that they always reduce immunity. Still confused :roll:
User avatar
abhimahna
User avatar
Board of Directors
Joined: 18 Jul 2015
Last visit: 06 Jul 2024
Posts: 3,481
Own Kudos:
5,779
 [2]
Given Kudos: 346
Status:Emory Goizueta Alum
Products:
Expert
Expert reply
Posts: 3,481
Kudos: 5,779
 [2]
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
prateek176

abhimahna
I understood that Option A tells us there will always be "some" diseases that will reduce the immune system activity because we know that the only means for them to be treated is Antibiotics.
However, Antibiotics are known to reduce immunity(as written in second line). That doesn't mean that they always reduce immunity. Still confused :roll:

Hey prateek176 ,

When I am saying antibiotics are "known" to reduce immunity, it means there is atleast one scenario where it is reducing the immunity.

Thus we are saying "in case of some diseases, it always reduces the immunity".

Let's say I have 100 diseases. Now, if I treat these diseases with antibiotics, a couple of them are getting affected.Thist means I can confidently say that there are "some" that are affected "always".

I hope its clear now. :)
User avatar
VerbalBot
User avatar
Non-Human User
Joined: 01 Oct 2013
Last visit: 04 Jan 2021
Posts: 19,423
Own Kudos:
Posts: 19,423
Kudos: 1,009
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Automated notice from GMAT Club VerbalBot:

A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.

This post was generated automatically.
Moderators:
GMAT Club Verbal Expert
7391 posts
501 posts
358 posts