Last visit was: 22 Apr 2026, 19:36 It is currently 22 Apr 2026, 19:36
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
gracezz
Joined: 07 Oct 2009
Last visit: 07 Oct 2009
Posts: 1
Own Kudos:
23
 [23]
Posts: 1
Kudos: 23
 [23]
5
Kudos
Add Kudos
18
Bookmarks
Bookmark this Post
Most Helpful Reply
User avatar
diogoguitarrista
Joined: 06 Sep 2009
Last visit: 24 Apr 2013
Posts: 64
Own Kudos:
74
 [9]
Given Kudos: 3
GMAT 1: 680 Q48 V35
Posts: 64
Kudos: 74
 [9]
8
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
User avatar
pqhai
User avatar
Retired Moderator
Joined: 16 Jun 2012
Last visit: 26 Nov 2015
Posts: 864
Own Kudos:
8,939
 [5]
Given Kudos: 123
Location: United States
Posts: 864
Kudos: 8,939
 [5]
5
Kudos
Add Kudos
Bookmarks
Bookmark this Post
General Discussion
User avatar
Aleehsgonji
Joined: 10 Jul 2009
Last visit: 13 Feb 2013
Posts: 74
Own Kudos:
Given Kudos: 8
Posts: 74
Kudos: 635
Kudos
Add Kudos
Bookmarks
Bookmark this Post
IMO E.
In the question the logic used is If A --> B
B does not imply A.

Options A,B,C, D follow this logic. So answer is E
User avatar
ssandeepan
Joined: 09 Jul 2007
Last visit: 13 Jun 2010
Posts: 116
Own Kudos:
1,741
 [1]
Posts: 116
Kudos: 1,741
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
IMO E - but the question took me 10 mins.
What should we do in the test if this kind of question appear ? Guess and progress or spend 5/6 mins to answer it correctly. What are your thoungs guys ?
User avatar
WaterFlowsUp
User avatar
Retired Moderator
Joined: 04 Jun 2013
Last visit: 08 Nov 2021
Posts: 328
Own Kudos:
2,088
 [3]
Given Kudos: 92
Status:Getting strong now, I'm so strong now!!!
Affiliations: National Institute of Technology, Durgapur
Location: United States (DE)
GPA: 3.32
WE:Information Technology (Healthcare/Pharmaceuticals)
Products:
Posts: 328
Kudos: 2,088
 [3]
3
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
unraveled
Joined: 07 Mar 2019
Last visit: 10 Apr 2025
Posts: 2,706
Own Kudos:
Given Kudos: 763
Location: India
WE:Sales (Energy)
Posts: 2,706
Kudos: 2,329
Kudos
Add Kudos
Bookmarks
Bookmark this Post
If a society encourages freedom of thought and expression, then, during the time when it does so, creativity will flourish in that society. In the United States creativity flourished during the eighteenth century. It is clear, therefore, that freedom of thought was encouraged in the United States during the eighteenth century.

An error of reasoning of the same kind as one contained in the passage is present in each of the following arguments EXCEPT:

(A) According to the airline industry, airfares have to rise if air travel is to be made safer; since airfares were just raised, we can rest assured that air travel will therefore become safer. - WRONG. Jump is made.

(B) We can conclude that the Hillside police department has improved its efficiency, because crime rates are down in Hillside, and it is an established fact that crime rates go down when police departments increase their efficiency. - WRONG. Jumps again to conclude.

(C) People who are really interested in the preservation of wildlife obviously do not go hunting for big game; since Gerda has never gone hunting for big game and intends never to do so, it is clear that she is really interested in the preservation of wildlife. - WRONG. Similar in approach.

(D) If the contents of a bottle are safe to drink, the bottle will not be marked “poison,” so, since the bottle is not marked “poison,” its contents will be safe to drink. - WRONG. Same.

(E) None of the so-called Western democracies is really democratic, because, for a country to be democratic, the opinion of each of its citizens must have a meaningful effect on government, and in none of these countries does each citizen’s opinion have such an effect. - CORRECT. No error in reasoning.

Reading the question stem one must understand that what could be the right answer be like. It can be such that
1. It has an error of reasoning but not like as presented in the passage. Most difficult one.
2. It has a exact opposite reasoning. Tricky difficult.
3. It has no error at all i.e. it has a logical reasoning. Less difficult
4. It is plain neutral. May confuse a little but easy relatively.

Above is in the decreasing order of difficulty as i see.
In this passage the line of reasoning makes error in assuming what is believed to have been believed in 18th century. Another error could be that only one possibility is there for such a result i.e. encouragement of freedom of thought and expression leads to flourishing creativity, however, this can be given a pass depending on the choice available. Here the conclusion makes a jump if the line of reasoning is difficult to identify(though its not). What is difficult to identify is identifying similarity of error of line of reasoning.

Answer E.
User avatar
agrasan
Joined: 18 Jan 2024
Last visit: 22 Apr 2026
Posts: 673
Own Kudos:
Given Kudos: 6,449
Location: India
Posts: 673
Kudos: 173
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hi experts MartyMurray KarishmaB DmitryFarber

I am a bit confused how (A) is wrong.

My reasoning is that the given statement in the main argument is based on the flaw in sufficient condition logic i.e., if X, then Y..the conclusion if Y, then X must have happened which is a flaw.

Coming to (A),
(A) According to the airline industry, airfares have to rise if air travel is to be made safer; since airfares were just raised, we can rest assured that air travel will therefore become safer.

airfares have to rise if air travel is to be made safer
Rise in Airfares is necessary for air travel is to be made safer because of the word "have to"

(A) is based on necessary condition logic whereas the main statement is based on sufficient condition, then how (A) is wrong?

Please let me know where I am thinking wrong for this option.
User avatar
guddo
Joined: 25 May 2021
Last visit: 22 Apr 2026
Posts: 1,012
Own Kudos:
11,315
 [2]
Given Kudos: 32
Posts: 1,012
Kudos: 11,315
 [2]
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
If a society encourages freedom of thought and expression, then, during the time when it does so, creativity will flourish in that society. In the United States creativity flourished during the eighteenth century. It is clear, therefore, that freedom of thought was encouraged in the United States during the eighteenth century.

An error of reasoning of the same kind as one contained in the passage is present in each of the following arguments EXCEPT:


The passage uses affirming the consequent: If P then Q; Q; therefore P.

(A) If safer air travel, then airfares must rise. Airfares rose, so air travel will be safer.

Same error: it treats “fares rose” as proof that “safety improved,” but fares could rise for other reasons.

(B) If police efficiency increases, then crime rates go down. Crime rates are down, so efficiency increased.

Same error: crime can fall for reasons unrelated to police efficiency.

(C) If someone is really interested in preserving wildlife, that person does not hunt big game. Gerda does not hunt, so she is really interested in preserving wildlife.

Same error: not hunting does not prove the motive.

(D) If contents are safe, the bottle will not be marked “poison.” The bottle is not marked “poison,” so the contents are safe.

Same error: lack of a poison label does not guarantee safety.

(E) If a country is democratic, each citizen’s opinion must have a meaningful effect on government. In these countries, not every citizen’s opinion has such an effect, so they are not really democratic.

This is not the same error. This is valid logic (If P then Q; not Q; therefore not P).

Answer: (E)
User avatar
guddo
Joined: 25 May 2021
Last visit: 22 Apr 2026
Posts: 1,012
Own Kudos:
11,315
 [2]
Given Kudos: 32
Posts: 1,012
Kudos: 11,315
 [2]
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
agrasan
Hi experts MartyMurray KarishmaB DmitryFarber

I am a bit confused how (A) is wrong.

My reasoning is that the given statement in the main argument is based on the flaw in sufficient condition logic i.e., if X, then Y..the conclusion if Y, then X must have happened which is a flaw.

Coming to (A),
(A) According to the airline industry, airfares have to rise if air travel is to be made safer; since airfares were just raised, we can rest assured that air travel will therefore become safer.

airfares have to rise if air travel is to be made safer
Rise in Airfares is necessary for air travel is to be made safer because of the word "have to"

(A) is based on necessary condition logic whereas the main statement is based on sufficient condition, then how (A) is wrong?

Please let me know where I am thinking wrong for this option.

Your reasoning about “have to” is right up to this point: it makes “fares rise” a necessary condition for “safety improves.”

But (A) is still wrong because it makes this exact invalid move:

If safety improves, then fares rise.
Fares rose.
Therefore, safety improved.

That is the same flaw as the stem: it treats a result as proof of the cause (affirming the consequent).

The key rule is: a necessary condition being true does not guarantee the outcome. It only says the outcome cannot happen without it.

So even if fares are required for safety improvements, fares can still rise for other reasons (fuel costs, taxes, demand, less competition), meaning “fares rose” does not prove “safety improved.”
User avatar
KarishmaB
Joined: 16 Oct 2010
Last visit: 21 Apr 2026
Posts: 16,439
Own Kudos:
79,388
 [3]
Given Kudos: 484
Location: Pune, India
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 16,439
Kudos: 79,388
 [3]
2
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
A sufficient condition and a necessary condition are sides of a coin.
If A, then B is equivalent to "Only if B, then A". When we say A always leads to B, it means B will necessarily be there when A is there.

"If freedom, then creativity will flourish" is the same as "Only if Creativity has flourished, then freedom would have been given"
Say you find out creativity has not flourished - then you can definitely say that freedom was not given. After all, if freedom were given, then creativity would have flourished.

In the given argument, you are given "If X, then Y" which also means Y is necessary for X. The conclusion is "if Y, then X must have happened.." which is a flaw because Y is necessary, not sufficient.

Option (A) does the same thing - takes necessary condition to be sufficient. Hence the flaw is the same in option (A).

Check out this CR discussion which includes this concept: https://youtu.be/RfRb_2IaBJw



agrasan
Hi experts MartyMurray KarishmaB DmitryFarber

I am a bit confused how (A) is wrong.

My reasoning is that the given statement in the main argument is based on the flaw in sufficient condition logic i.e., if X, then Y..the conclusion if Y, then X must have happened which is a flaw.

Coming to (A),
(A) According to the airline industry, airfares have to rise if air travel is to be made safer; since airfares were just raised, we can rest assured that air travel will therefore become safer.

airfares have to rise if air travel is to be made safer
Rise in Airfares is necessary for air travel is to be made safer because of the word "have to"

(A) is based on necessary condition logic whereas the main statement is based on sufficient condition, then how (A) is wrong?

Please let me know where I am thinking wrong for this option.
Moderators:
GMAT Club Verbal Expert
7391 posts
499 posts
358 posts