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

It is currently 23 Sep 2018, 03:31

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

Justin, Max, and Paul each have a collection of marbles. Justin has 50

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

Hide Tags

SVP
SVP
User avatar
V
Status: Preparing for the GMAT
Joined: 02 Nov 2016
Posts: 1673
Location: Pakistan
GPA: 3.39
Premium Member CAT Tests
Justin, Max, and Paul each have a collection of marbles. Justin has 50  [#permalink]

Show Tags

New post 21 Mar 2017, 00:02
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

91% (00:52) correct 9% (02:52) wrong based on 35 sessions

HideShow timer Statistics

Justin, Max, and Paul each have a collection of marbles. Justin has 50% fewer marbles than Max has. Max has 30% more marbles than Paul has. If Paul’s collection contains 80 marbles, how many marbles does Justin’s collection contain?

A. 32
B. 48
C. 52
D. 56
E. 64

_________________

Official PS Practice Questions
Press +1 Kudos if this post is helpful

Senior Manager
Senior Manager
User avatar
G
Joined: 19 Apr 2016
Posts: 274
Location: India
GMAT 1: 570 Q48 V22
GMAT 2: 640 Q49 V28
GPA: 3.5
WE: Web Development (Computer Software)
Re: Justin, Max, and Paul each have a collection of marbles. Justin has 50  [#permalink]

Show Tags

New post 21 Mar 2017, 00:15
1
SajjadAhmad wrote:
Justin, Max, and Paul each have a collection of marbles. Justin has 50% fewer marbles than Max has. Max has 30% more marbles than Paul has. If Paul’s collection contains 80 marbles, how many marbles does Justin’s collection contain?

A. 32
B. 48
C. 52
D. 56
E. 64


Max has 30% more marbles than Paul has ==> 1.3 * 80 = 104
Justin has 50% fewer marbles than Max has ==> 0.5 * 104 = 52

Hence option C is correct
Hit Kudos if you liked it 8-)
Senior Manager
Senior Manager
User avatar
B
Status: Come! Fall in Love with Learning!
Joined: 05 Jan 2017
Posts: 457
Location: India
Premium Member
Justin, Max, and Paul each have a collection of marbles. Justin has 50  [#permalink]

Show Tags

New post 21 Mar 2017, 02:14
SajjadAhmad wrote:
Justin, Max, and Paul each have a collection of marbles. Justin has 50% fewer marbles than Max has. Max has 30% more marbles than Paul has. If Paul’s collection contains 80 marbles, how many marbles does Justin’s collection contain?

A. 32
B. 48
C. 52
D. 56
E. 64

paul has 80 marbles
max has 1.3*80 marbles = 104
justin has 0.5*104 = 52 marbles

option C
_________________

GMAT Mentors
Image

Target Test Prep Representative
User avatar
G
Status: Head GMAT Instructor
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2835
Re: Justin, Max, and Paul each have a collection of marbles. Justin has 50  [#permalink]

Show Tags

New post 04 Sep 2018, 04:24
1
SajjadAhmad wrote:
Justin, Max, and Paul each have a collection of marbles. Justin has 50% fewer marbles than Max has. Max has 30% more marbles than Paul has. If Paul’s collection contains 80 marbles, how many marbles does Justin’s collection contain?

A. 32
B. 48
C. 52
D. 56
E. 64


We can let j = the number of marbles Justin has, m = the number of marbles Max has and p = the number of marbles Paul has. Thus we can create the following equations:

j = 0.5m

m = 1.3p

and

p = 80

So m = 1.3(80) = 104 and j = 0.5(104) = 52. Justin has 52 marbles.

Answer: C
_________________

Jeffery Miller
Head of GMAT Instruction

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

GMAT Club Bot
Re: Justin, Max, and Paul each have a collection of marbles. Justin has 50 &nbs [#permalink] 04 Sep 2018, 04:24
Display posts from previous: Sort by

Justin, Max, and Paul each have a collection of marbles. Justin has 50

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

Events & Promotions

PREV
NEXT


Copyright

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®.