Last visit was: 20 Apr 2026, 17:39 It is currently 20 Apr 2026, 17:39
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
 1   2   3   4   5   6   7   8   9   10   
555-605 (Medium)|   Word Problems|         
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 20 Apr 2026
Posts: 109,701
Own Kudos:
810,280
 [13]
Given Kudos: 105,779
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,701
Kudos: 810,280
 [13]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:00
2
Kudos
Add Kudos
11
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

25% (medium)

Question Stats:

79% (01:50) correct 21% (02:19) wrong based on 753 sessions

History

Date
Time
Result
Not Attempted Yet
At a wildlife reserve, two tracking sessions were conducted to study 16 tagged animals. In each session, the animals were randomly grouped into 8 pairs, and in each pair, one animal was observed as dominant and the other as subordinate. Of the animals that were subordinate in the first session, 5 were also subordinate in the second session. How many animals were dominant in both sessions?

(A) 2
(B) 3
(C) 4
(D) 5
(E) 6


 


This question was provided by GMAT Club
for the GMAT Club Olympics Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

 

ShowHide Answer
Official Answer
D
Most Helpful Reply
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 20 Apr 2026
Posts: 109,701
Own Kudos:
810,280
 [6]
Given Kudos: 105,779
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,701
Kudos: 810,280
 [6]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:30
5
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
Bunuel
At a wildlife reserve, two tracking sessions were conducted to study 16 tagged animals. In each session, the animals were randomly grouped into 8 pairs, and in each pair, one animal was observed as dominant and the other as subordinate. Of the animals that were subordinate in the first session, 5 were also subordinate in the second session. How many animals were dominant in both sessions?

(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
Show more

­

GMAT Club Official Explanation:



In each session, 16 animals were placed into 8 pairs, so exactly 8 animals were observed as dominant and 8 as subordinate.

In the second session, 8 animals were subordinate. Of those, 5 had already been subordinate in the first session.

That means the other 3 subordinate animals in the second session must have been dominant in the first session.

So, out of the 8 animals that were dominant in the first session, 3 became subordinate in the second, leaving 8 - 3 = 5 animals that were dominant in both sessions.

Answer: D.
General Discussion
User avatar
Duongduong273
User avatar
Joined: 08 Apr 2023
Last visit: 03 Feb 2026
Posts: 32
Own Kudos:
32
 [1]
Given Kudos: 4
Posts: 32
Kudos: 32
 [1]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:10
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
(D). 5 In first session: 8 subordinate animals, of these 8, 5 were subordinate again → so 3 of them became dominant in second session. Therefore, in Second session has 8 dominant has 3 of these are from the subordinate group of session 1, so dominants who were also dominant in session 1 = 8 – 3 = 5.
Bunuel
At a wildlife reserve, two tracking sessions were conducted to study 16 tagged animals. In each session, the animals were randomly grouped into 8 pairs, and in each pair, one animal was observed as dominant and the other as subordinate. Of the animals that were subordinate in the first session, 5 were also subordinate in the second session. How many animals were dominant in both sessions?

(A) 2
(B) 3
(C) 4
(D) 5
(E) 6


 


This question was provided by GMAT Club
for the GMAT Club Olympics Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

 

Show more
User avatar
ABCL0070
User avatar
Joined: 04 Jan 2023
Last visit: 06 Apr 2026
Posts: 43
Own Kudos:
9
 [1]
Given Kudos: 54
Posts: 43
Kudos: 9
 [1]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:12
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I THINK ANSWER IS D. SINCE 5 ANIMALS IN THE FIRST SESSION REMAINED SUBORDINATE IN THE SECOND SESSION, THEIR PAIRS REMAINED DOMINANT IN THE SECOND SESSION.
User avatar
DataGuyX
User avatar
Joined: 23 Apr 2023
Last visit: 02 Apr 2026
Posts: 111
Own Kudos:
77
 [1]
Given Kudos: 161
Location: Brazil
Concentration: Entrepreneurship, Technology
Schools: Booth '26 (A$) Kellogg '26 (A) Sloan '26 (D) Stanford '26 (D) Haas '26 (D) HBS '26 (D)
GMAT Focus 1: 675 Q79 V85 DI86
GPA: 7.3
Schools: Booth '26 (A$) Kellogg '26 (A) Sloan '26 (D) Stanford '26 (D) Haas '26 (D) HBS '26 (D)
GMAT Focus 1: 675 Q79 V85 DI86
Posts: 111
Kudos: 77
 [1]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:13
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Here we know that 5 os subordinate animals from the first session are also subordinate in the second session. Because of that, 3 dominant animals from the first session will be subordinate in the second session, to complete the 8 pairs. Since 3 dominants from the first session become subordinates in the second session, then 5 dominants from first session will remain as dominant in the second.
User avatar
MaxFabianKirchner
User avatar
Joined: 02 Jun 2025
Last visit: 12 Jul 2025
Posts: 65
Own Kudos:
63
 [1]
Given Kudos: 122
Status:26' Applicant
Location: Denmark
Concentration: Finance, International Business
Schools: ESSEC MiF '26 ESADE HEC Imperial LBS Oxford MFE '26 Sloan (MIT) NYU Stern NUS Bocconi IE'26
GPA: 4.0
WE:Other (Student)
Schools: ESSEC MiF '26 ESADE HEC Imperial LBS Oxford MFE '26 Sloan (MIT) NYU Stern NUS Bocconi IE'26
Posts: 65
Kudos: 63
 [1]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:13
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Total animals: 16
In each session: 8 are dominant, 8 are subordinate.

The key information is that 5 animals were subordinate in both Session 1 and Session 2.

1. Consider the 8 animals that were subordinate in Session 1.
* We know 5 of them stayed subordinate in Session 2.
* Therefore, the other 3 must have become dominant in Session 2. (8 - 5 = 3)

2. Now consider the 8 animals that were dominant in Session 2.
* We just found that 3 of these animals were subordinate in Session 1.
* Therefore, the remaining animals must have been dominant in Session 1 as well. (8 - 3 = 5)

So, 5 animals were dominant in both sessions.

The correct answer is (D) 5.
User avatar
Rohit_842
User avatar
Joined: 01 Feb 2024
Last visit: 20 Apr 2026
Posts: 118
Own Kudos:
33
 [2]
Given Kudos: 117
Posts: 118
Kudos: 33
 [2]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:13
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Since there were 5 same subordinates in the second session, the remaining 3 subordinates must have replaced any 3 dominant ones, hence leaving only 5 same dominants for both sessions
User avatar
Aboyhasnoname
User avatar
Joined: 19 Jan 2025
Last visit: 15 Apr 2026
Posts: 302
Own Kudos:
100
 [8]
Given Kudos: 64
Products:
My Reviews
Posts: 302
Kudos: 100
 [8]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:14
8
Kudos
Add Kudos
Bookmarks
Bookmark this Post
The Answer is 5.

Can be solved by making 2 X 2 table of............ TABLE BELOW...

Total is 16 Animals..... So in 1st Session 8 Dominant and 8 Subordinate..and the same goes for Session 2..... So the outermost values are 8 each...
Now We are given that Of the animals that were subordinate in the first session, 5 were also subordinate in the second session...means the intersection of S1 and S2 will be 5......and we have to find the intersection of D1 and D2....
So if S1 -S2 is 5 then D2-S1 is 8-5=3...and D2D1 is 8-3 = 5...
table Below


D1S1TOTAL
D28
S258
8816


D1S1TOTAL
D2538
S2358
8816

Bunuel
At a wildlife reserve, two tracking sessions were conducted to study 16 tagged animals. In each session, the animals were randomly grouped into 8 pairs, and in each pair, one animal was observed as dominant and the other as subordinate. Of the animals that were subordinate in the first session, 5 were also subordinate in the second session. How many animals were dominant in both sessions?

(A) 2
(B) 3
(C) 4
(D) 5
(E) 6


 


This question was provided by GMAT Club
for the GMAT Club Olympics Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

 

Show more
User avatar
anuraagnandi9
User avatar
Joined: 25 Mar 2025
Last visit: 21 Jan 2026
Posts: 11
Own Kudos:
12
 [1]
Given Kudos: 3
Location: India
GMAT Focus 1: 705 Q87 V84 DI84
GPA: 3.34
GMAT Focus 1: 705 Q87 V84 DI84
Posts: 11
Kudos: 12
 [1]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:14
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
This is a set problem,
in first round, there are 8 dominant and 8 subordinate animals,
in second round, there are 5 subordinate animals that were subordinate in first round as well,
So it is total - (union of atleast once subordinate) = 16 - (8 + 3) = 5
User avatar
Ryga
User avatar
Joined: 12 Aug 2023
Last visit: 19 Aug 2025
Posts: 68
Own Kudos:
51
 [2]
Given Kudos: 5
Location: India
Concentration: General Management, Leadership
Schools: INSEAD Jan '26 NUS '27 Stern '26
GMAT Focus 1: 695 Q90 V80 DI83
Schools: INSEAD Jan '26 NUS '27 Stern '26
GMAT Focus 1: 695 Q90 V80 DI83
Posts: 68
Kudos: 51
 [2]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:15
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Session 1 : 8 Dominant + 8 Subordinate
Session 2 : 8 Dominant + 8 Subordinate

Its given that 5 were subordinates in both the sessions which indirectly tells us that 3 subordinate animals turned
dominant in session 2.
So, 3 dominant animals turned into subordinate for session 2.
Which directly tells us that 5 Dominant animals remained dominant in session 2 as well.
So, Answer D
User avatar
crimson_king
User avatar
Joined: 21 Dec 2023
Last visit: 20 Apr 2026
Posts: 152
Own Kudos:
156
 [1]
Given Kudos: 113
GRE 1: Q170 V170
GRE 1: Q170 V170
Posts: 152
Kudos: 156
 [1]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:16
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Step 1: Understanding the Setup

There are 16 animals.
In each session, they are grouped into 8 pairs.
In each pair, one is dominant, one is subordinate.
So, in each session:

8 dominant
8 subordinate


Let’s call the animals S1: subordinate in session 1 (8 animals).
Of these, 5 were also subordinate in session 2.

So, in the intersection of "subordinate in session 1" and "subordinate in session 2," there are 5 animals.

Now since 8 animals have to be subordinate in session 2 & 5 animals from session 1 are subordinate, this means that 3 animals from the dominant group in session 1 are now subordinate in session 2.

This means that there are (8-3)=5 animals in the intersection of dominant in session 1 & session 2

Hence the answer is option (D) 5
User avatar
Redmaster2
User avatar
Joined: 11 Mar 2025
Last visit: 02 Mar 2026
Posts: 52
Own Kudos:
25
 [1]
Given Kudos: 105
Posts: 52
Kudos: 25
 [1]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:18
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
We know that each session will have 8 dominant and 8 subordinate.
We know 5 animals were subordinate in both sessions, therefore 3 must be dominant in the second session but no in the second. Furthermore 5 must be dominant in both sessions
User avatar
Kinshook
User avatar
Major Poster
Joined: 03 Jun 2019
Last visit: 20 Apr 2026
Posts: 5,985
Own Kudos:
5,855
 [1]
Given Kudos: 163
Location: India
Schools: HBS '26 CBS '26 Wharton '26
GMAT 1: 690 Q50 V34
WE:Engineering (Transportation)
Products:
My Reviews
Schools: HBS '26 CBS '26 Wharton '26
GMAT 1: 690 Q50 V34
Posts: 5,985
Kudos: 5,855
 [1]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:20
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
At a wildlife reserve, two tracking sessions were conducted to study 16 tagged animals. In each session, the animals were randomly grouped into 8 pairs, and in each pair, one animal was observed as dominant and the other as subordinate. Of the animals that were subordinate in the first session, 5 were also subordinate in the second session.

How many animals were dominant in both sessions?


1st session
DominantSubordinateTotal
2nd sessionDominant8
Subordinate58
Total8816


In each session, the animals were randomly grouped into 8 pairs, and in each pair, one animal was observed as dominant and the other as subordinate.
1st session
DominantSubordinateTotal
2nd sessionDominant538
Subordinate358
Total8816

5 number of animals were dominant in both sessions.

IMO D
User avatar
Dereno
User avatar
Joined: 22 May 2020
Last visit: 20 Apr 2026
Posts: 1,398
Own Kudos:
1,372
 [1]
Given Kudos: 425
Products:
GMAT Club Tests
Posts: 1,398
Kudos: 1,372
 [1]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:20
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
At a wildlife reserve, two tracking sessions were conducted to study 16 tagged animals. In each session, the animals were randomly grouped into 8 pairs, and in each pair, one animal was observed as dominant and the other as subordinate. Of the animals that were subordinate in the first session, 5 were also subordinate in the second session. How many animals were dominant in both sessions?

(A) 2
(B) 3
(C) 4
(D) 5
(E) 6


 


This question was provided by GMAT Club
for the GMAT Club Olympics Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

 

Show more
Let the number of tagged animals be numbered as 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 and 16.

The number of tracking sessions be TWO ( A and B) and each session has 8 pairs. Which means all 16 participate in each session.

Session A and B has a DOMINANT and SUBORDINATE pair.

Let’s take session A:

Dominant : 1,2,3,4,5,6,7,8

Subordinate: 9,10,11,12,13,14,15,16.

Given that of the animals subordinate in first session, 5 animals was subordinate in session B also.

Let the five subordinate animals which are Subordinate in session B are : 9,10,11,12,13.

The Remaining three places be filled from animals present in the dominant group.

Session B :

Dominant : 1,2,3,4,5, 14,15,16

Subordinate : 9,10,11,12,13, 6,7,8

so, the number of animals which is dominant in both sessions is : 5 { 1,2,3,4,5}

Option D
User avatar
Heix
User avatar
Joined: 21 Feb 2024
Last visit: 13 Apr 2026
Posts: 460
Own Kudos:
164
 [1]
Given Kudos: 63
Location: India
Concentration: Finance, Entrepreneurship
Schools: Ross MM "26 NUS Columbia '27
GMAT Focus 1: 485 Q76 V74 DI77
GPA: 3.4
WE:Accounting (Finance)
Products:
My Reviews
Schools: Ross MM "26 NUS Columbia '27
GMAT Focus 1: 485 Q76 V74 DI77
Posts: 460
Kudos: 164
 [1]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:23
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post

Show Spoiler
Attachment:
GMAT-Club-Forum-2ctl2baw.jpeg
GMAT-Club-Forum-2ctl2baw.jpeg [ 235.72 KiB | Viewed 3841 times ]
User avatar
chasing725
User avatar
Joined: 22 Jun 2025
Last visit: 13 Jan 2026
Posts: 176
Own Kudos:
173
 [1]
Given Kudos: 5
Location: United States (OR)
Schools: Stanford
Schools: Stanford
Posts: 176
Kudos: 173
 [1]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:25
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
At a wildlife reserve, two tracking sessions were conducted to study 16 tagged animals. In each session, the animals were randomly grouped into 8 pairs, and in each pair, one animal was observed as dominant and the other as subordinate. Of the animals that were subordinate in the first session, 5 were also subordinate in the second session. How many animals were dominant in both sessions?

(A) 2
(B) 3
(C) 4
(D) 5
(E) 6


 


This question was provided by GMAT Club
for the GMAT Club Olympics Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

 

Show more

Each session has 8 dominant and 8 subordinates.

Session 1 : 8 D & 8S
Session 2: 8D & 8S

Between Session 1 and Session 2, 5 are common. Hence, 3 wildlife moved from subordinate to dominant between session 1 and session 2.

Hence 8 - 3 = 5 animals were dominant in both sessions.

Option D
User avatar
AbhishekP220108
User avatar
Joined: 04 Aug 2024
Last visit: 20 Apr 2026
Posts: 494
Own Kudos:
209
 [1]
Given Kudos: 135
GMAT Focus 1: 555 Q81 V78 DI74
Products:
My Reviews GMAT Club Tests Forum Quiz
GMAT Focus 1: 555 Q81 V78 DI74
Posts: 494
Kudos: 209
 [1]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:26
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Total 8

Subordinate in 2 session is 5, then dominate is 3 so in both sessions 8-3=5


Bunuel
At a wildlife reserve, two tracking sessions were conducted to study 16 tagged animals. In each session, the animals were randomly grouped into 8 pairs, and in each pair, one animal was observed as dominant and the other as subordinate. Of the animals that were subordinate in the first session, 5 were also subordinate in the second session. How many animals were dominant in both sessions?

(A) 2
(B) 3
(C) 4
(D) 5
(E) 6


 


This question was provided by GMAT Club
for the GMAT Club Olympics Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

 

Show more
User avatar
Meghna_Gupta
User avatar
Joined: 01 May 2024
Last visit: 13 Feb 2026
Posts: 13
Own Kudos:
8
 [1]
Given Kudos: 3
Posts: 13
Kudos: 8
 [1]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:26
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Two Sessions and total 16 animals were grouped into 8 pairs in each session

Session1: 8 pairs ->8 dominant and 8 subordinate (as in each pair, one is dominant and other is subordinate). Likewise we have for,
Session2: 8 pairs ->8 dominant and 8 subordinate (as in each pair, one is dominate and other is subordinate)

Now, we have been provided that of the animals that were subordinate in session1 (which was 8 as subordinate), 5animals were also subordinate in session2. So this means, of the 8 subordinate in session2, we have 5 subordinate which are also in session1 as subordinate. Also, in session1, we have left with 3 subordinates which are not subordinate in session2, thus these 3 will be dominant in session2. Therefore, we can say that in session2, of the 8 dominant, we have 3 animals who were not dominant in session1 and 5 animals who were dominant in both sessions.
Option (D)-5

Hope this helps :)

Regards,
User avatar
Rahulkhera
User avatar
Joined: 08 Apr 2019
Last visit: 12 Apr 2026
Posts: 12
Own Kudos:
2
 [1]
Given Kudos: 61
Location: India
Schools: Booth '26
GPA: 3
Products:
GMAT Club Tests
Schools: Booth '26
Posts: 12
Kudos: 2
 [1]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:27
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Answer should be D. In the first session, 8 animals were dominant and 8 were subordinate. Of the animals that were subordinate in the first session, 5 were also subordinate in the second session. This means their partners were still dominant in the second session. Hence, 5 animals were dominant in both sessions.
Bunuel
Quote:
At a wildlife reserve, two tracking sessions were conducted to study 16 tagged animals. In each session, the animals were randomly grouped into 8 pairs, and in each pair, one animal was observed as dominant and the other as subordinate. Of the animals that were subordinate in the first session, 5 were also subordinate in the second session. How many animals were dominant in both sessions?

(A) 2
(B) 3
(C) 4
(D) 5
(E) 6


 


This question was provided by GMAT Club
for the GMAT Club Olympics Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

 

Show more
User avatar
arbh77
User avatar
Joined: 12 Apr 2025
Last visit: 15 Jul 2025
Posts: 12
Own Kudos:
5
 [1]
Given Kudos: 9
Posts: 12
Kudos: 5
 [1]
GMAT Club Olympics 2025 (Day 1): At a wildlife reserve, two tracking 30 Jun 2025, 08:28
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
The answer is 5 (D)

In the first session with 8 pairs, 8 are dominant and 8 are subordinate. Out of the 8 subs, 5 remained subs in the second session so only 3 animals who were previously dominant now became subs, leaving 5 animals to be dominant twice.

Bunuel
At a wildlife reserve, two tracking sessions were conducted to study 16 tagged animals. In each session, the animals were randomly grouped into 8 pairs, and in each pair, one animal was observed as dominant and the other as subordinate. Of the animals that were subordinate in the first session, 5 were also subordinate in the second session. How many animals were dominant in both sessions?

(A) 2
(B) 3
(C) 4
(D) 5
(E) 6


 


This question was provided by GMAT Club
for the GMAT Club Olympics Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

 

Show more
 1   2   3   4   5   6   7   8   9   10   
Moderators:
Bunuel
Math Expert
109701 posts
Krunaal
Tuck School Moderator
853 posts