Last visit was: 25 Apr 2026, 13:46 It is currently 25 Apr 2026, 13:46
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
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 25 Apr 2026
Posts: 109,831
Own Kudos:
811,265
 [26]
Given Kudos: 105,886
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: 109,831
Kudos: 811,265
 [26]
In a survey on sales of soft drinks, 65 percent of the surveyed 16 Aug 2023, 12:00
2
Kudos
Add Kudos
24
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:

5% (low)

Question Stats:

95% (01:15) correct 5% (02:16) wrong based on 569 sessions

History

Date
Time
Result
Not Attempted Yet
In a survey on sales of soft drinks, 65 percent of the surveyed customers said that they buy brand A regularly, 60 percent said that they buy brand B regularly, and 32 percent said that they do not usually buy either of the two brands. What percent of the surveyed customers said that they buy both brands A and B regularly?

A. 37
B. 54
C. 57
D. 59
E. 61
ShowHide Answer
Official Answer
C
Need more Tests to Practice? GMAT Club Tests give expert solutions for every question in full and sectional GMAT Focus mocks. Learn more →
Most Helpful Reply
User avatar
gmatophobia
User avatar
Quant Chat Moderator
Joined: 22 Dec 2016
Last visit: 19 Apr 2026
Posts: 3,173
Own Kudos:
11,465
 [10]
Given Kudos: 1,862
Location: India
Concentration: Strategy, Leadership
Posts: 3,173
Kudos: 11,465
 [10]
In a survey on sales of soft drinks, 65 percent of the surveyed 16 Aug 2023, 12:46
8
Kudos
Add Kudos
2
Bookmarks
Bookmark this Post
Bunuel
In a survey on sales of soft drinks, 65 percent of the surveyed customers said that they buy brand A regularly, 60 percent said that they buy brand B regularly, and 32 percent said that they do not usually buy either of the two brands. What percent of the surveyed customers said that they buy both brands A and B regularly?

A. 37
B. 54
C. 57
D. 59
E. 61
Show more

We can use a 2*2 matrix to solve this question. Let's plot the information on a matrix as shown below -


Brand A Not Brand A Total
Brand Bx60
Not Brand B3240
Total6535100

Using the information in the premise we can find the values of the remaining cells


Brand A Not Brand A Total
Brand B65-08 = 5760
Not Brand B40-32 = 083240
Total6535100

Option C
User avatar
JeffTargetTestPrep
User avatar
Target Test Prep Representative
Joined: 04 Mar 2011
Last visit: 05 Jan 2024
Posts: 2,974
Own Kudos:
8,712
 [10]
Given Kudos: 1,646
Status:Head GMAT Instructor
Affiliations: Target Test Prep
Expert
Expert reply
Posts: 2,974
Kudos: 8,712
 [10]
In a survey on sales of soft drinks, 65 percent of the surveyed 19 Aug 2023, 15:16
6
Kudos
Add Kudos
4
Bookmarks
Bookmark this Post
Bunuel
In a survey on sales of soft drinks, 65 percent of the surveyed customers said that they buy brand A regularly, 60 percent said that they buy brand B regularly, and 32 percent said that they do not usually buy either of the two brands. What percent of the surveyed customers said that they buy both brands A and B regularly?

A. 37
B. 54
C. 57
D. 59
E. 61
Show more

To solve this problem, we can use a formula for 2 overlapping sets:

Total = #A + #B – #Both + #Neither

The formula works well even if we have percentage data only.

100% = 65% + 60% – Both + 32%

Both = 57%

Answer: C
General Discussion
User avatar
kanishkakarpe
User avatar
Joined: 12 Apr 2023
Last visit: 18 Aug 2024
Posts: 27
Own Kudos:
32
 [1]
Given Kudos: 22
Posts: 27
Kudos: 32
 [1]
In a survey on sales of soft drinks, 65 percent of the surveyed 17 Aug 2023, 12:10
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Pretty easy with set theory-
T = (A u B) + neither A or B = (A + B - A n B) + neither A or B
100 = 65 + 60 - (required) + 32

A n B = 57
User avatar
Paras96
User avatar
Joined: 11 Sep 2022
Last visit: 30 Dec 2023
Posts: 456
Own Kudos:
338
Given Kudos: 2
Location: India
Paras: Bhawsar
GMAT 1: 590 Q47 V24
GMAT 2: 580 Q49 V21
GMAT 3: 700 Q49 V35
GPA: 3.2
WE:Project Management (Other)
GMAT 3: 700 Q49 V35
Posts: 456
Kudos: 338
In a survey on sales of soft drinks, 65 percent of the surveyed 20 Aug 2023, 00:06
Kudos
Add Kudos
Bookmarks
Bookmark this Post
In a survey on sales of soft drinks, 65 percent of the surveyed customers said that they buy brand A regularly, 60 percent said that they buy brand B regularly, and 32 percent said that they do not usually buy either of the two brands. What percent of the surveyed customers said that they buy both brands A and B regularly?

Total = buy brand A regularly + buy brand B regularly + do not usually buy either of the two brands - buy both brands A and B regularly
=>100 = 65+60+32-x
=> x = 57

Hence C
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 38,985
Own Kudos:
1,118
Posts: 38,985
Kudos: 1,118
In a survey on sales of soft drinks, 65 percent of the surveyed 27 Sep 2025, 02:52
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
109831 posts
Krunaal
Tuck School Moderator
852 posts