Last visit was: 24 Apr 2026, 08:10 It is currently 24 Apr 2026, 08:10
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
chetan2u
User avatar
GMAT Expert
Joined: 02 Aug 2009
Last visit: 24 Apr 2026
Posts: 11,229
Own Kudos:
45,008
 [1]
Given Kudos: 335
Status:Math and DI Expert
Location: India
Concentration: Human Resources, General Management
GMAT Focus 1: 735 Q90 V89 DI81
Products:
My Reviews
Expert
Expert reply
GMAT Focus 1: 735 Q90 V89 DI81
Posts: 11,229
Kudos: 45,008
 [1]
What percent of the visitors to a certain zoo were female? 05 Apr 2016, 22:39
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

75% (hard)

Question Stats:

46% (01:43) correct 54% (01:03) wrong based on 87 sessions

History

Date
Time
Result
Not Attempted Yet
What percent of the visitors to a certain zoo were female?

(1) A quarter of the visitors who did not visit the lions cage were male.

(2) Three quarters of the visitors who visited the lions cage were female.

OA after 2 days
ShowHide Answer
Official Answer
C
avatar
What percent of the visitors to a certain zoo were female? 05 Apr 2016, 23:26
Kudos
Add Kudos
Bookmarks
Bookmark this Post
What percent of the visitors to a certain zoo were female?

(1) A quarter of the visitors who did not visit the lions cage were male.

(2) Three quarters of the visitors who visited the lions cage were female.

IMO difficult to paraphrase. But i will try.

Statement 1 - Suppose there are 100 visitors who did not go to lions cage. So according to statement 1 25 of them are males and 75 are females who did not visit the cage. Not sufficient overall.

Statement 2 -Suppose there are 100 visitors who did go to lions cage. So according to statement 75 of them are females and 25 are males who did go to the cage. Not sufficient overall.

Statement 1 and 2 in total gives total percentage of females 150/200 which is 75%. C is the answer IMO.

Posted from my mobile device
User avatar
chetan2u
User avatar
GMAT Expert
Joined: 02 Aug 2009
Last visit: 24 Apr 2026
Posts: 11,229
Own Kudos:
45,008
Given Kudos: 335
Status:Math and DI Expert
Location: India
Concentration: Human Resources, General Management
GMAT Focus 1: 735 Q90 V89 DI81
Products:
My Reviews
Expert
Expert reply
GMAT Focus 1: 735 Q90 V89 DI81
Posts: 11,229
Kudos: 45,008
What percent of the visitors to a certain zoo were female? 05 Apr 2016, 23:41
Kudos
Add Kudos
Bookmarks
Bookmark this Post
FightToSurvive
What percent of the visitors to a certain zoo were female?

(1) A quarter of the visitors who did not visit the lions cage were male.

(2) Three quarters of the visitors who visited the lions cage were female.

IMO difficult to paraphrase. But i will try.

Statement 1 - Suppose there are 100 visitors who did not go to lions cage. So according to statement 1 25 of them are males and 75 are females who did not visit the cage. Not sufficient overall.

Statement 2 -Suppose there are 100 visitors who did go to lions cage. So according to statement 75 of them are females and 25 are males who did go to the cage. Not sufficient overall.

Statement 1 and 2 in total gives total percentage of females 150/200 which is 75%. C is the answer IMO.

Posted from my mobile device
Show more


Hi,
If say the 2nd statement was-
(2) One quarter of the visitors who visited the lions cage were female.

What would be the answer and % in that case?
avatar
FightToSurvive
avatar
Joined: 18 Sep 2014
Last visit: 15 Dec 2016
Posts: 198
Own Kudos:
257
Given Kudos: 5
Schools: ISB '18 (A) Fisher '19 (II) Smeal Penn State "19 (A$) Kelley '19 (S) Olin '19 (S) Simon '19 (A$) Broad '19 (S)
Products:
My Reviews
Schools: ISB '18 (A) Fisher '19 (II) Smeal Penn State "19 (A$) Kelley '19 (S) Olin '19 (S) Simon '19 (A$) Broad '19 (S)
Posts: 198
Kudos: 257
What percent of the visitors to a certain zoo were female? 05 Apr 2016, 23:52
Kudos
Add Kudos
Bookmarks
Bookmark this Post
chetan2u
FightToSurvive
What percent of the visitors to a certain zoo were female?

(1) A quarter of the visitors who did not visit the lions cage were male.

(2) Three quarters of the visitors who visited the lions cage were female.

IMO difficult to paraphrase. But i will try.

Statement 1 - Suppose there are 100 visitors who did not go to lions cage. So according to statement 1 25 of them are males and 75 are females who did not visit the cage. Not sufficient overall.

Statement 2 -Suppose there are 100 visitors who did go to lions cage. So according to statement 75 of them are females and 25 are males who did go to the cage. Not sufficient overall.

Statement 1 and 2 in total gives total percentage of females 150/200 which is 75%. C is the answer IMO.

Posted from my mobile device


Hi,
If say the 2nd statement was-
(2) One quarter of the visitors who visited the lions cage were female.

What would be the answer and % in that case?
Show more

Hi,
Say 100 visitors went to see the lions cage and 25 of them will be females in that case and 75 males or children who visited.

Then total no of visitors is 200. Number of females 75 who did not go and 25 who did go to the cage. So number of females is 100. So 100/200 = 50%.

If my understanding is wrong can u pls send me message explaining the question. I am getting killed here.

Posted from my mobile device
User avatar
chetan2u
User avatar
GMAT Expert
Joined: 02 Aug 2009
Last visit: 24 Apr 2026
Posts: 11,229
Own Kudos:
45,008
 [1]
Given Kudos: 335
Status:Math and DI Expert
Location: India
Concentration: Human Resources, General Management
GMAT Focus 1: 735 Q90 V89 DI81
Products:
My Reviews
Expert
Expert reply
GMAT Focus 1: 735 Q90 V89 DI81
Posts: 11,229
Kudos: 45,008
 [1]
What percent of the visitors to a certain zoo were female? 06 Apr 2016, 00:02
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
FightToSurvive
chetan2u
FightToSurvive
What percent of the visitors to a certain zoo were female?

(1) A quarter of the visitors who did not visit the lions cage were male.

(2) Three quarters of the visitors who visited the lions cage were female.

IMO difficult to paraphrase. But i will try.

Statement 1 - Suppose there are 100 visitors who did not go to lions cage. So according to statement 1 25 of them are males and 75 are females who did not visit the cage. Not sufficient overall.

Statement 2 -Suppose there are 100 visitors who did go to lions cage. So according to statement 75 of them are females and 25 are males who did go to the cage. Not sufficient overall.

Statement 1 and 2 in total gives total percentage of females 150/200 which is 75%. C is the answer IMO.

Posted from my mobile device


Hi,
If say the 2nd statement was-
(2) One quarter of the visitors who visited the lions cage were female.

What would be the answer and % in that case?

Hi,
Say 100 visitors went to see the lions cage and 25 of them will be females in that case and 75 males or children who visited.

Then total no of visitors is 200. Number of females 75 who did not go and 25 who did go to the cage. So number of females is 100. So 100/200 = 50%.

If my understanding is wrong can u pls send me message explaining the question. I am getting killed here.

Posted from my mobile device
Show more

Hi,

the original Q


You got your answer correct because the % of females in both cases wer 75% so overall it turned out to be 75%..
Your answer was correct but you faultered in method by taking/ assuming number for both statement 1..

the modified statement II


here the % of females in one case is 75% and in other case 25%..
You got 50% because you took people visiting lions cage to be 100 and people NOt visiting also to be 100..
If you take them as 200 and 100 , the answer will be different..
SO, in that CASE, answer will be E as we donot know the ratio of those visited and those who did not...

I specifically asked you this because I found your solution slightly incorrect if in a different scenario..
SO don't assume two VALUES separately for two statements
avatar
FightToSurvive
avatar
Joined: 18 Sep 2014
Last visit: 15 Dec 2016
Posts: 198
Own Kudos:
257
Given Kudos: 5
Schools: ISB '18 (A) Fisher '19 (II) Smeal Penn State "19 (A$) Kelley '19 (S) Olin '19 (S) Simon '19 (A$) Broad '19 (S)
Products:
My Reviews
Schools: ISB '18 (A) Fisher '19 (II) Smeal Penn State "19 (A$) Kelley '19 (S) Olin '19 (S) Simon '19 (A$) Broad '19 (S)
Posts: 198
Kudos: 257
What percent of the visitors to a certain zoo were female? 06 Apr 2016, 00:08
Kudos
Add Kudos
Bookmarks
Bookmark this Post
[/quote]
You got your answer correct because the % of females in both cases wer 75% so overall it turned out to be 75%..
Your answer was correct but you faultered in method by taking/ assuming number for both statement 1..

the modified statement II


here the % of females in one case is 75% and in other case 25%..
You got 50% because you took people visiting lions cage to be 100 and people NOt visiting also to be 100..
If you take them as 200 and 100 , the answer will be different..
SO, in that CASE, answer will be E as we donot know the ratio of those visited and those who did not...

I specifically asked you this because I found your solution slightly incorrect if in a different scenario..
SO don't assume two VALUES separately for two statements[/quote]

Thank you so much for filling this gap in my concept. I will remember this.
User avatar
Kurtosis
User avatar
Current Student
Joined: 13 Apr 2015
Last visit: 10 Nov 2021
Posts: 1,384
Own Kudos:
5,236
 [1]
Given Kudos: 1,228
Location: India
Products:
My Reviews
Posts: 1,384
Kudos: 5,236
 [1]
What percent of the visitors to a certain zoo were female? 06 Apr 2016, 01:11
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
chetan2u
What percent of the visitors to a certain zoo were female?

(1) A quarter of the visitors who did not visit the lions cage were male.

(2) Three quarters of the visitors who visited the lions cage were female.

OA after 2 days
Show more

Assume the number of visitors who visited the cage = x and the number of visitors who did not visit the cage = y.

MaleFemaleTotal
Visitors who visit the cage(1/4)x(3/4)xx
Visitors who do not visit the cage(1/4)y(3/4)yy
Total(1/4)(x +y)(3/4)(x + y)x + y

Question: what percent of the visitors to the zoo were female?

If we start filling the table we find that St1 and St2 are individually insufficient

Combining St1 and St2: Percentage = (0.75(x + y)/(x + y))*100 = 75%

Answer: C
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 38,972
Own Kudos:
1,117
Posts: 38,972
Kudos: 1,117
What percent of the visitors to a certain zoo were female? 13 Jan 2022, 07:39
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Automated notice from GMAT Club BumpBot:

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:
Bunuel
Math Expert
109814 posts
kingbucky
498 posts
Gmat860sanskar
212 posts