Last visit was: 29 Apr 2026, 14:53 It is currently 29 Apr 2026, 14:53
Home
Messages
Tests
Schools
Events
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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
Back to Forum
Create Topic
User avatar
nitya34
User avatar
Joined: 04 Jan 2008
Last visit: 06 Mar 2014
Posts: 510
Own Kudos:
4,492
 [2]
Given Kudos: 17
Posts: 510
Kudos: 4,492
 [2]
Since all dogs are animals, and cats are animals, then all cats are do Updated on: 11 Apr 2019, 00:45
Originally posted by nitya34 on 03 Mar 2009, 10:05.
Last edited by Bunuel on 11 Apr 2019, 00:45, edited 1 time in total.
Renamed the topic and edited the question.
Kudos
Add Kudos
2
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

15% (low)

Question Stats:

78% (00:58) correct 22% (01:27) wrong based on 255 sessions

History

Date
Time
Result
Not Attempted Yet
Since all dogs are animals, and cats are animals, then all cats are dogs.

Which of the following parallels the reasoning in the passage above?


A. All men are human beings, and children are human beings. Therefore all men are children.

B. All children are human beings, and some men are children. Therefore all men are human beings.

C. Some men are heavy, and some men are tall. Therefore all tall men are heavy.

D. Some animals are dogs, and some animals are cats. Therefore all dogs and cats are animals.

E. All cats are animals, and some animals are dogs. Therefore some animals could be cats or dogs.

source:cliff
ShowHide Answer
Official Answer
A
User avatar
omraan
User avatar
Joined: 08 Apr 2013
Last visit: 19 Dec 2013
Posts: 15
Own Kudos:
13
Given Kudos: 16
Posts: 15
Kudos: 13
Since all dogs are animals, and cats are animals, then all cats are do 19 Oct 2013, 01:42
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Since all dogs are animals, and cats are animals, then all cats are dogs.
Which of the following parallels the reasoning in the passage above?
A. All men are human beings, and children are human beings. Therefore
all men are children.
B. All children are human beings, and some men are children. Therefore
all men are human beings.
C. Some men are heavy, and some men are tall. Therefore all tall men
are heavy.
D. Some animals are dogs, and some animals are cats. Therefore all dogs
and cats are animals.
E. All cats are animals, and some animals are dogs. Therefore some
animals could be cats or dogs.

source:cliff



hi there,
it's kinda urgent guys!
may you please help me guys,
I know that
Show Spoiler
A
is the correct answer, but why C is wrong?
How can we surely take out
Show Spoiler
C
?
look,
Show Spoiler
C
says some men are heavy (heavy men are men = dogs are animals).
tall men are men also (tall men are men = cats are animals).
so all tall men are heavy (= so all cats are dogs).
please let me know where I'm wrong.
and provide explanations please.
Thanks
User avatar
MacFauz
User avatar
Joined: 02 Jul 2012
Last visit: 19 Mar 2022
Posts: 990
Own Kudos:
3,406
Given Kudos: 116
Location: India
Concentration: Strategy
Schools: Ross '16 (D) McCombs '16 (D) Kenan-Flagler '16 (WA) Olin '16 (M$) Tepper '16 (D)
GMAT 1: 740 Q49 V42
GPA: 3.8
WE:Engineering (Energy)
Schools: Ross '16 (D) McCombs '16 (D) Kenan-Flagler '16 (WA) Olin '16 (M$) Tepper '16 (D)
GMAT 1: 740 Q49 V42
Posts: 990
Kudos: 3,406
Since all dogs are animals, and cats are animals, then all cats are do 19 Oct 2013, 03:31
Kudos
Add Kudos
Bookmarks
Bookmark this Post
The question says

Set Dog is a subset of Set Animal
Set Cat is a subset of Set Animal
So, Set Dog = Set Cat

Le us see what each of the answer choices say:

Choice A:
Set Men is a subset of Set Human Beings
Set Children is a subset of Set Human Beings
So, Set Men = Set Children

Choice C
Set Heavy overlaps with Set Men
Set Tall overlaps with Set Men
So, Overlap of Set Heavy & Set Men = Overlap of Set Tall and Set Men
User avatar
omraan
User avatar
Joined: 08 Apr 2013
Last visit: 19 Dec 2013
Posts: 15
Own Kudos:
13
Given Kudos: 16
Posts: 15
Kudos: 13
Since all dogs are animals, and cats are animals, then all cats are do 19 Oct 2013, 07:38
Kudos
Add Kudos
Bookmarks
Bookmark this Post
MacFauz
The question says

Set Dog is a subset of Set Animal
Set Cat is a subset of Set Animal
So, Set Dog = Set Cat

Le us see what each of the answer choices say:

Choice A:
Set Men is a subset of Set Human Beings
Set Children is a subset of Set Human Beings
So, Set Men = Set Children

Choice C
Set Heavy overlaps with Set Men
Set Tall overlaps with Set Men
So, Overlap of Set Heavy & Set Men = Overlap of Set Tall and Set Men
Show more

Dear MacFauz,
thanks for reply,
but actually your response made me more confused, why in choice A we say SUBSET, and in choice C we say OVERLAP??
it says " some MEN are heavy, and some MEN are tall"
so both heavy men and tall men are subsets of heavy; we are not talking about women, so there is no overlap in this sense.
it's like saying "some animals are dogs; some animals are cats"
look at the picture below and let me know abt what you think then,
thnx again for your time
Attachments

File comment: some men are heavy + some men are tall = tall men are heavy.
dogs are animals + cats are animals = cats are dogs.
MEN.jpg
MEN.jpg [ 45.76 KiB | Viewed 11872 times ]

User avatar
MacFauz
User avatar
Joined: 02 Jul 2012
Last visit: 19 Mar 2022
Posts: 990
Own Kudos:
3,406
Given Kudos: 116
Location: India
Concentration: Strategy
Schools: Ross '16 (D) McCombs '16 (D) Kenan-Flagler '16 (WA) Olin '16 (M$) Tepper '16 (D)
GMAT 1: 740 Q49 V42
GPA: 3.8
WE:Engineering (Energy)
Schools: Ross '16 (D) McCombs '16 (D) Kenan-Flagler '16 (WA) Olin '16 (M$) Tepper '16 (D)
GMAT 1: 740 Q49 V42
Posts: 990
Kudos: 3,406
Since all dogs are animals, and cats are animals, then all cats are do 19 Oct 2013, 08:16
Kudos
Add Kudos
Bookmarks
Bookmark this Post
You got the first one right.. But the second one is only one of many ways the equation can be represented and actually imposes some unstated limitations. Please find below what could be a representation of choice C... Of course there could also be some tall and heavy men in which case all three circles would be overlapping.

I say "overlap" because choice C unlike choice A uses the word "some".

I don't know if this can be considered a property.. But let me call it an observation...

If one set is a subset of another set, then the two are overlapping sets.
If two sets are overlapping sets, one set need not necessarily be a subset of the other set.

I hope I was able to make my explanation clear.
Attachments

Tall And Heavy Men.jpg
Tall And Heavy Men.jpg [ 30.43 KiB | Viewed 11776 times ]

User avatar
KarishmaB
User avatar
Joined: 16 Oct 2010
Last visit: 28 Apr 2026
Posts: 16,447
Own Kudos:
79,447
 [1]
Given Kudos: 485
Location: Pune, India
Products:
GMAT Club Tests
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 16,447
Kudos: 79,447
 [1]
Since all dogs are animals, and cats are animals, then all cats are do 20 Oct 2013, 20:48
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
omraan
Since all dogs are animals, and cats are animals, then all cats are dogs.
Which of the following parallels the reasoning in the passage above?
A. All men are human beings, and children are human beings. Therefore
all men are children.
B. All children are human beings, and some men are children. Therefore
all men are human beings.
C. Some men are heavy, and some men are tall. Therefore all tall men
are heavy.
D. Some animals are dogs, and some animals are cats. Therefore all dogs
and cats are animals.
E. All cats are animals, and some animals are dogs. Therefore some
animals could be cats or dogs.

source:cliff



hi there,
it's kinda urgent guys!
may you please help me guys,
I know that
Show Spoiler
A
is the correct answer, but why C is wrong?
How can we surely take out
Show Spoiler
C
?
look,
Show Spoiler
C
says some men are heavy (heavy men are men = dogs are animals).
tall men are men also (tall men are men = cats are animals).
so all tall men are heavy (= so all cats are dogs).
please let me know where I'm wrong.
and provide explanations please.
Thanks
Show more

You should notice the structure of the argument.

Since all dogs are animals, and cats are animals, then all cats are dogs.
parallels

All A are B.
C are B.
So all C are A.

A. All men are human beings, and children are human beings. Therefore all men are children.
parallels

All A are B.
C are B.
So all A are C

The reasoning is flawed in the same way. Just because A and C are members of a common group B, we are saying that A and C are equivalent. Though all C are A is not the same as all A are C but the flaw is the same.

C. Some men are heavy, and some men are tall. Therefore all tall men are heavy.
parallels

Some A are B.
Some A are C.
So C which are A are B.

Here the flaw is different. Because A are members of two groups B and C, we are saying that C are B.
User avatar
VerbalBot
User avatar
Non-Human User
Joined: 01 Oct 2013
Last visit: 04 Jan 2021
Posts: 19,426
Own Kudos:
1,010
Posts: 19,426
Kudos: 1,010
Since all dogs are animals, and cats are animals, then all cats are do 15 Nov 2021, 16:59
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:
GMATNinja
GMAT Club Verbal Expert
7391 posts
AbhishekP220108
509 posts
bhanu29
363 posts