Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Sep 2312:30 AM EDT
-01:30 AM EDT
Learn how Keshav, a Chartered Accountant, scored an impressive 705 on GMAT in just 30 days with GMATWhiz's expert guidance. In this video, he shares preparation tips and strategies that worked for him, including the mock, time management, and more
Sep 2401:30 AM EDT
-01:30 AM EDT
Tejas studied hard but kept repeating the same mistakes. After 3 attempts at 645, a focused 4-week strategy helped him identify and fix what was holding him back—leading to a 695 with just 12–15 hours of study per week.
Sep 2606:00 PM PDT
-07:00 PM PDT
Free- full-length test + 15 concept videos + 150+ short videos + study plan!
30 Jun 2025, 08:47
Kudos
Bookmarks
Total number of tagged animals = 16
There are two sessions, with 8 pairs each
In both sessions, 8 will be dominant and 8 will be subordinate
Out of the 8 subordinates from session 1, 5 stayed subordinates in session 2
=> 3 became dominant
Session 2 has 8 dominant animals, of which 3 switched from subordinate to dominant
Number of dominant animals in session 2 who were already dominant in session 1 = total dominants in session 2 − who became dominant = 8 - 3 = 5
There are two sessions, with 8 pairs each
In both sessions, 8 will be dominant and 8 will be subordinate
Out of the 8 subordinates from session 1, 5 stayed subordinates in session 2
=> 3 became dominant
Session 2 has 8 dominant animals, of which 3 switched from subordinate to dominant
Number of dominant animals in session 2 who were already dominant in session 1 = total dominants in session 2 − who became dominant = 8 - 3 = 5
30 Jun 2025, 08:47
Kudos
Bookmarks
In the wildlife reserve study, 16 animals were paired in two separate tracking sessions, with each session assigning 8 animals as dominant and 8 as subordinate. Of the 8 animals that were subordinate in the first session, 5 remained subordinate in the second session, meaning the other 3 became dominant. Since only 8 animals can be dominant in the second session, and 3 of them came from the previously subordinate group, the remaining 5 dominant animals in the second session must have already been dominant in the first session as well. Therefore, 5 animals were dominant in both sessions.
Bunuel
30 Jun 2025, 08:47
Kudos
Bookmarks
**Solution:**
We have 16 animals observed in two sessions. In each session, they're paired into 8 dominant-subordinate pairs.
**Given:**
- 5 animals were subordinate in both sessions.
**Calculations:**
1. **First Session:**
- Subordinate animals (S1): 8
- Dominant animals (D1): 8
2. **Second Session:**
- Subordinate animals (S2): 8
- Dominant animals (D2): 8
3. **Overlap:**
- Animals subordinate in both sessions (S1 ∩ S2) = 5
- Therefore, animals subordinate in first session but dominant in second (S1 ∩ D2) = 8 - 5 = 3
4. **Dominant in Both Sessions:**
- Total dominant in first session (D1) = 8
- Some of these were subordinate in second session (D1 ∩ S2)
- Since total subordinate in second session (S2) = 8, and 5 were from S1, then D1 ∩ S2 = 3
- Thus, dominant in both sessions (D1 ∩ D2) = 8 - 3 = 5
**Final Answer:**
\[
\boxed{5}
\]
This shows 5 animals were dominant in both tracking sessions. The numbers consistently add up to the total of 16 animals when considering all possible role combinations.
We have 16 animals observed in two sessions. In each session, they're paired into 8 dominant-subordinate pairs.
**Given:**
- 5 animals were subordinate in both sessions.
**Calculations:**
1. **First Session:**
- Subordinate animals (S1): 8
- Dominant animals (D1): 8
2. **Second Session:**
- Subordinate animals (S2): 8
- Dominant animals (D2): 8
3. **Overlap:**
- Animals subordinate in both sessions (S1 ∩ S2) = 5
- Therefore, animals subordinate in first session but dominant in second (S1 ∩ D2) = 8 - 5 = 3
4. **Dominant in Both Sessions:**
- Total dominant in first session (D1) = 8
- Some of these were subordinate in second session (D1 ∩ S2)
- Since total subordinate in second session (S2) = 8, and 5 were from S1, then D1 ∩ S2 = 3
- Thus, dominant in both sessions (D1 ∩ D2) = 8 - 3 = 5
**Final Answer:**
\[
\boxed{5}
\]
This shows 5 animals were dominant in both tracking sessions. The numbers consistently add up to the total of 16 animals when considering all possible role combinations.
