Find all School-related info fast with the new School-Specific MBA Forum

It is currently 30 May 2016, 03:43
GMAT Club Tests

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

David has d books, which is 3 times as many as Jeff and 1/2

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

Hide Tags

Manager
Manager
avatar
Joined: 02 Dec 2012
Posts: 178
Followers: 3

Kudos [?]: 1597 [0], given: 0

David has d books, which is 3 times as many as Jeff and 1/2 [#permalink]

Show Tags

New post 13 Dec 2012, 09:56
3
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

84% (02:07) correct 16% (01:23) wrong based on 540 sessions

HideShow timer Statistics

David has d books, which is 3 times as many as Jeff and 1/2 as many as Paula. How many books do the three of them have altogether, in terms of d?

(A) 5/6*d
(B) 7/3*d
(C) 10/3*d
(D) 7/2*d
(E) 9/2*d
[Reveal] Spoiler: OA
Expert Post
1 KUDOS received
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 33062
Followers: 5775

Kudos [?]: 70849 [1] , given: 9857

Re: David has d books, which is 3 times as many as Jeff and 1/2 [#permalink]

Show Tags

New post 13 Dec 2012, 09:58
1
This post received
KUDOS
Expert's post
Walkabout wrote:
David has d books, which is 3 times as many as Jeff and 1/2 as many as Paula. How many books do the three of them have altogether, in terms of d?

(A) 5/6*d
(B) 7/3*d
(C) 10/3*d
(D) 7/2*d
(E) 9/2*d


David has d books;
Jeff has d/3 books;
Paula has 2d books;

Total = d+d/3+2d=10d/3.

Answer: C.
_________________

New to the Math Forum?
Please read this: 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

Manager
Manager
User avatar
Joined: 12 Jan 2013
Posts: 244
Followers: 4

Kudos [?]: 57 [0], given: 47

GMAT ToolKit User
Re: David has d books, which is 3 times as many as Jeff and 1/2 [#permalink]

Show Tags

New post 10 Jan 2014, 02:11
Walkabout wrote:
David has d books, which is 3 times as many as Jeff and 1/2 as many as Paula. How many books do the three of them have altogether, in terms of d?

(A) 5/6*d
(B) 7/3*d
(C) 10/3*d
(D) 7/2*d
(E) 9/2*d



We are given: [(d/3) = J] and [(d/2) = P], and we also have Davids own books = d


Just add all three together and express them in common denominator of 3: (3/3)*d + (d/3) + (6/3)*d = (10/3)*d
Director
Director
User avatar
Joined: 10 Mar 2013
Posts: 605
Location: Germany
Concentration: Finance, Entrepreneurship
GMAT 1: 580 Q46 V24
GPA: 3.88
WE: Information Technology (Consulting)
Followers: 8

Kudos [?]: 143 [0], given: 200

GMAT ToolKit User
Re: David has d books, which is 3 times as many as Jeff and 1/2 [#permalink]

Show Tags

New post 11 Jun 2014, 05:58
1
This post was
BOOKMARKED
It's also possible to solve with smart numbers
David has 120
Jeff 120/3 = 40
Paula 120*2 = 240
Total 400 Books --> 400/120 = 10/3
_________________

When you’re up, your friends know who you are. When you’re down, you know who your friends are.

Share some Kudos, if my posts help you. Thank you !

800Score ONLY QUANT CAT1 51, CAT2 50, CAT3 50
GMAT PREP 670
MGMAT CAT 630
KAPLAN CAT 660

Manager
Manager
avatar
Joined: 07 Apr 2014
Posts: 147
Followers: 1

Kudos [?]: 19 [0], given: 81

Re: David has d books, which is 3 times as many as Jeff and 1/2 [#permalink]

Show Tags

New post 12 Sep 2014, 06:30
Walkabout wrote:
David has d books, which is 3 times as many as Jeff and 1/2 as many as Paula. How many books do the three of them have altogether, in terms of d?

(A) 5/6*d
(B) 7/3*d
(C) 10/3*d
(D) 7/2*d
(E) 9/2*d




David = d ; jeff=f ; paula = p


d=3j ; d=p(1/2)

d+j+p = d+ d/3 + 2d = 10d /3
1 KUDOS received
SVP
SVP
User avatar
Status: The Best Or Nothing
Joined: 27 Dec 2012
Posts: 1858
Location: India
Concentration: General Management, Technology
WE: Information Technology (Computer Software)
Followers: 35

Kudos [?]: 1523 [1] , given: 193

Re: David has d books, which is 3 times as many as Jeff and 1/2 [#permalink]

Show Tags

New post 30 Sep 2014, 22:11
1
This post received
KUDOS
David ................ Jeff ................... Paula

d ........................ \(\frac{d}{3}\) ....................... 2d

\(Total = 3d + \frac{d}{3} = \frac{10d}{3}\)

Answer = C
_________________

Kindly press "+1 Kudos" to appreciate :)

GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 09 Sep 2013
Posts: 9696
Followers: 466

Kudos [?]: 120 [0], given: 0

Premium Member
Re: David has d books, which is 3 times as many as Jeff and 1/2 [#permalink]

Show Tags

New post 04 Oct 2015, 01:47
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

Manager
Manager
User avatar
Joined: 10 Jul 2015
Posts: 127
GMAT 1: 770 Q47 V48
WE: Education (Education)
Followers: 6

Kudos [?]: 21 [0], given: 15

Re: David has d books, which is 3 times as many as Jeff and 1/2 [#permalink]

Show Tags

New post 25 May 2016, 22:21
Attached is a visual that should help.
Attachments

Screen Shot 2016-05-25 at 9.42.32 PM.png
Screen Shot 2016-05-25 at 9.42.32 PM.png [ 110.22 KiB | Viewed 80 times ]

Re: David has d books, which is 3 times as many as Jeff and 1/2   [#permalink] 25 May 2016, 22:21
    Similar topics Author Replies Last post
Similar
Topics:
2 Experts publish their posts in the topic 3^(-11)/2 + 3^(-12)/4 + 3^(-13)/6 is how many times 3^(-14) ? Nezdem 2 15 Feb 2016, 07:02
1 Experts publish their posts in the topic John has s pairs of shoes, which is 1/3 as many as Shiela and twice as Bunuel 2 03 Jan 2016, 12:42
Experts publish their posts in the topic A certain used-book dealer sells paperback books at 3 times dealer's Bunuel 2 23 Nov 2015, 12:36
6 Experts publish their posts in the topic Canister C is 1/2 full of water and canister D, which has tw avohden 8 18 Nov 2013, 12:12
7 Experts publish their posts in the topic Bill has d animals, 12 of which were sold at a profit of 10% actleader 9 01 Nov 2012, 22:59
Display posts from previous: Sort by

David has d books, which is 3 times as many as Jeff and 1/2

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


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

Powered by phpBB © phpBB Group and phpBB SEO

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®.