Last visit was: 16 Sep 2026, 01:44 It is currently 16 Sep 2026, 01:44
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
AkshdeepS
User avatar
Joined: 13 Apr 2013
Last visit: 08 Aug 2026
Posts: 1,420
Own Kudos:
1,978
 [48]
Given Kudos: 1,002
Status:It's near - I can see.
Location: India
Concentration: International Business, Operations
GPA: 3.01
WE:Engineering (Real Estate)
Products:
My Reviews
Posts: 1,420
Kudos: 1,978
 [48]
In a group, 90% members drink at least one of the three drinks - Tea, 15 Sep 2019, 21:49
4
Kudos
Add Kudos
44
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:

45% (medium)

Question Stats:

71% (01:55) correct 29% (02:12) wrong based on 582 sessions

History

Date
Time
Result
Not Attempted Yet
In a group, 90% members drink at least one of the three drinks - Tea, Coffee, and Latte . 60% members drink at least two of the three drinks and 20% members drink all three. What is the percentage of members who drink exactly one or two of the three drinks?

a. 50
b. 60
c. 70
d. 80
e. 90
ShowHide Answer
Official Answer
C
Most Helpful Reply
User avatar
gurmukh
User avatar
Joined: 18 Dec 2017
Last visit: 30 Dec 2025
Posts: 257
Own Kudos:
276
 [6]
Given Kudos: 20
Posts: 257
Kudos: 276
 [6]
In a group, 90% members drink at least one of the three drinks - Tea, 31 May 2020, 05:26
2
Kudos
Add Kudos
4
Bookmarks
Bookmark this Post
Atleast 1 drink =90%
Atleast 2 drink = 60%
Therefore exactly one drink = 30%
Exactly 3 drinks = 20%
Therefore exactly 2 drinks = 40%
Therefore one or two = 30+40=70%

Posted from my mobile device
User avatar
RenB
User avatar
Joined: 13 Jul 2022
Last visit: 06 Jul 2026
Posts: 386
Own Kudos:
1,633
 [7]
Given Kudos: 302
Location: India
Concentration: Finance, Nonprofit
Schools: Stanford '26 Wharton  '26 (D) Booth '26 (D) Yale '26 (D) CBS '26 (A$$$) Darden '26 (WL) HBS '28 (D) Ross '26 (A$$$$) LBS '26 (D) Tuck '26 (A$$) Kellogg '26 (A)
GMAT Focus 1: 715 Q90 V84 DI82
GPA: 3.74
WE:Corporate Finance (Consulting)
Schools: Stanford '26 Wharton  '26 (D) Booth '26 (D) Yale '26 (D) CBS '26 (A$$$) Darden '26 (WL) HBS '28 (D) Ross '26 (A$$$$) LBS '26 (D) Tuck '26 (A$$) Kellogg '26 (A)
GMAT Focus 1: 715 Q90 V84 DI82
Posts: 386
Kudos: 1,633
 [7]
In a group, 90% members drink at least one of the three drinks - Tea, 06 May 2023, 19:08
3
Kudos
Add Kudos
2
Bookmarks
Bookmark this Post
AkshdeepS
In a group, 90% members drink at least one of the three drinks - Tea, Coffee, and Latte . 60% members drink at least two of the three drinks and 20% members drink all three. What is the percentage of members who drink exactly one or two of the three drinks?

a. 50
b. 60
c. 70
d. 80
e. 90
Show more

Can be easily solved through a figure-
Attachments

File comment: Figure with explanation
Overlapping sets- experts global.jpg
Overlapping sets- experts global.jpg [ 203.54 KiB | Viewed 7245 times ]

General Discussion
User avatar
Hazel1134
User avatar
Joined: 02 May 2019
Last visit: 21 Oct 2019
Posts: 7
Own Kudos:
11
 [3]
Given Kudos: 6
Posts: 7
Kudos: 11
 [3]
In a group, 90% members drink at least one of the three drinks - Tea, 16 Sep 2019, 00:01
2
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
AkshdeepS
In a group, 90% members drink at least one of the three drinks - Tea, Coffee, and Latte . 60% members drink at least two of the three drinks and 20% members drink all three. What is the percentage of members who drink exactly one or two of the three drinks?

a. 50
b. 60
c. 70
d. 80
e. 90
Show more

Question is asking the total percentage of members who drink 1 or 2 of the 3.

Since Total members who drink is 90% and members who drank all three are 20%, members who drank 1 or 2 is equal to 90-20=70

hence C
User avatar
ajaygaur319
User avatar
Joined: 05 May 2019
Last visit: 01 Jan 2021
Posts: 125
Own Kudos:
710
 [4]
Given Kudos: 143
Location: India
Schools: NYU Tech MBA "21
Schools: NYU Tech MBA "21
Posts: 125
Kudos: 710
 [4]
In a group, 90% members drink at least one of the three drinks - Tea, 31 May 2020, 05:15
4
Kudos
Add Kudos
Bookmarks
Bookmark this Post
exactly 1 + exactly 2 + exactly 3 + neither = total

Need to calculate exactly 1 + exactly 2 (say x)

x + 20 + 10 = 100
=> x = 70

(C) is the correct answer.
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 39,225
Own Kudos:
1,159
Posts: 39,225
Kudos: 1,159
In a group, 90% members drink at least one of the three drinks - Tea, 01 Jun 2025, 09:29
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.
Moderator:
Bunuel
Math Expert
113567 posts