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

It is currently 17 Jul 2018, 16:25

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.

Close

Request Expert Reply

Confirm Cancel

The Venn diagram shows the enrollment of 400 college students in one

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Expert Post
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 47037
The Venn diagram shows the enrollment of 400 college students in one [#permalink]

Show Tags

New post 13 Apr 2018, 02:15
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

57% (01:20) correct 43% (01:02) wrong based on 35 sessions

HideShow timer Statistics

Image
The Venn diagram shows the enrollment of 400 college students in one or more of three classes: mathematics, English, and physics. What percent of the students are taking only mathematics or only physics and no other class?

(1) Of the 400 students, 240 are taking English.
(2) Of the 400 students, 190 are taking mathematics and 140 are taking physics.

Attachment:
2018-04-13_1313.png
2018-04-13_1313.png [ 21.65 KiB | Viewed 530 times ]

_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

3 KUDOS received
Manager
Manager
avatar
B
Joined: 28 Apr 2014
Posts: 52
GMAT 1: 640 Q50 V25
GMAT ToolKit User
Re: The Venn diagram shows the enrollment of 400 college students in one [#permalink]

Show Tags

New post 13 Apr 2018, 02:23
3
IMO D

St1
Students that (physics+ maths) only=400-(240+20)=140
%= 140*100/400

St2
math=190-(50+30+20)=100
phy=140-(20+30+40)=50
%=150*100/400
Manager
Manager
User avatar
G
Joined: 16 Sep 2016
Posts: 225
WE: Analyst (Health Care)
Premium Member CAT Tests
Re: The Venn diagram shows the enrollment of 400 college students in one [#permalink]

Show Tags

New post 13 Apr 2018, 02:24
Bunuel wrote:
Image
The Venn diagram shows the enrollment of 400 college students in one or more of three classes: mathematics, English, and physics. What percent of the students are taking only mathematics or only physics and no other class?

(1) Of the 400 students, 240 are taking English.
(2) Of the 400 students, 190 are taking mathematics and 140 are taking physics.

Attachment:
2018-04-13_1313.png


(1) No info about Math and physics..Hence Insufficient As there may be a few students not taking any of Phy, Math or english.

(2) 190 are total math... from the figure we can find out the only math part. ( 190 - 50 - 30 - 20 = 100) similarly for physics. Suff to find only physics + only math.

Hence Option (B) is our answer.

Best,
Gladi
Intern
Intern
avatar
B
Joined: 08 Jan 2018
Posts: 2
CAT Tests
Re: The Venn diagram shows the enrollment of 400 college students in one [#permalink]

Show Tags

New post 13 Apr 2018, 02:39
Gladiator59 wrote:
Bunuel wrote:
Image
The Venn diagram shows the enrollment of 400 college students in one or more of three classes: mathematics, English, and physics. What percent of the students are taking only mathematics or only physics and no other class?

(1) Of the 400 students, 240 are taking English.
(2) Of the 400 students, 190 are taking mathematics and 140 are taking physics.

Attachment:
2018-04-13_1313.png


(1) No info about Math and physics..Hence Insufficient As there may be a few students not taking any of Phy, Math or english.

(2) 190 are total math... from the figure we can find out the only math part. ( 190 - 50 - 30 - 20 = 100) similarly for physics. Suff to find only physics + only math.

Hence Option (B) is our answer.

Best,
Gladi
"enrollment of 400 college students in one or more of three classes: mathematics, English, and physics" - doesn't it mean that all 400 are part of atleast one of them?
Hence A also looks sufficient along with B.


Sent from my Lenovo TB3-710F using GMAT Club Forum mobile app
Manager
Manager
User avatar
G
Joined: 16 Sep 2016
Posts: 225
WE: Analyst (Health Care)
Premium Member CAT Tests
Re: The Venn diagram shows the enrollment of 400 college students in one [#permalink]

Show Tags

New post 13 Apr 2018, 02:47
Sayon wrote:
"enrollment of 400 college students in one or more of three classes: mathematics, English, and physics" - doesn't it mean that all 400 are part of atleast one of them?
Hence A also looks sufficient along with B.


Sent from my Lenovo TB3-710F using GMAT Club Forum mobile app


Hi Sayon ,

You are correct here. If we can be sure that all students are in one of the three classes. Then we can find out the sum of students for only Math + only Phy after subtracting the other categories from 400.

Thanks for pointing out. :-D

Best,
Gladi
Director
Director
avatar
G
Joined: 02 Oct 2017
Posts: 596
Re: The Venn diagram shows the enrollment of 400 college students in one [#permalink]

Show Tags

New post 28 Apr 2018, 06:48
As question talks About enrollment in one or more courses so neither has value zero here

I)only English slot value is available via statement
To calculate only maths and physics subtract all other from 400

II)gives value of only maths and only physics so sufficient

D IS ANSWER

Posted from my mobile device
Re: The Venn diagram shows the enrollment of 400 college students in one   [#permalink] 28 Apr 2018, 06:48
Display posts from previous: Sort by

The Venn diagram shows the enrollment of 400 college students in one

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  

Events & Promotions

PREV
NEXT


GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

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®.