GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 10 Dec 2018, 00:46

# Dec 10th is GMAT Club's BDAY :-)

Free GMAT Club Tests & Quizzes for 24 hrs to celebrate together!

### 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

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

## Events & Promotions

###### Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
• ### Free lesson on number properties

December 10, 2018

December 10, 2018

10:00 PM PST

11:00 PM PST

Practice the one most important Quant section - Integer properties, and rapidly improve your skills.
• ### Free GMAT Prep Hour

December 11, 2018

December 11, 2018

09:00 PM EST

10:00 PM EST

Strategies and techniques for approaching featured GMAT topics. December 11 at 9 PM EST.

# M21-18

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 51055

### Show Tags

16 Sep 2014, 00:11
00:00

Difficulty:

25% (medium)

Question Stats:

74% (01:00) correct 26% (01:00) wrong based on 117 sessions

### HideShow timer Statistics

Among the 150 people attending GMAT preparation course, if 90 attend Verbal classes, 80 attend Quant classes, and 35 are on a special challenging program and do not attend either the Verbal or Quant classes, how many people attend only Quant classes?

A. 25
B. 35
C. 40
D. 45
E. 50

_________________
Math Expert
Joined: 02 Sep 2009
Posts: 51055

### Show Tags

16 Sep 2014, 00:11
Official Solution:

Among the 150 people attending GMAT preparation course, if 90 attend Verbal classes, 80 attend Quant classes, and 35 are on a special challenging program and do not attend either the Verbal or Quant classes, how many people attend only Quant classes?

A. 25
B. 35
C. 40
D. 45
E. 50

$$\{Total\} = \{Verbal\} + \{Quant\} - \{Both\} + \{Neither\}$$;

$$150 = 90 + 80 - \{Both\} + 35$$, solving gives $$\{Both\} = 55$$.

Therefore, since 80 people attend Quant classes and 55 people attend both classes then $$80-55=25$$ people attend ONLY Quant classes.

_________________
Senior Manager
Joined: 08 Jun 2015
Posts: 436
Location: India
GMAT 1: 640 Q48 V29
GMAT 2: 700 Q48 V38
GPA: 3.33

### Show Tags

28 Nov 2017, 07:32
Use Venn diagram concept. Option A
_________________

" The few , the fearless "

Intern
Joined: 22 Mar 2016
Posts: 7

### Show Tags

05 Apr 2018, 16:38
Can we use a table for this problem?
Re: M21-18 &nbs [#permalink] 05 Apr 2018, 16:38
Display posts from previous: Sort by

# M21-18

Moderators: chetan2u, Bunuel

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.